National Medical Journal of China
Instructions for Authors
ABOUT THE JOURNAL
SCOPE OF THE JOURNAL
THE EDITORIAL PROCESS
Manuscripts that are found suitable for publication in CMJ are sent to two or more expert reviewers. The journal follows a double-blind review process, wherein the reviewers and authors are unaware of each other’s identity. Every manuscript is also assigned to a member of the editorial team, who based on the comments from the reviewers takes a final decision on the manuscript. The comments and suggestions (acceptance/rejection/amendments in manuscript) received from reviewers are conveyed to the corresponding author. If required, the author is requested to provide a point by point response to reviewers’ comments and submit a revised version of the manuscript. This process is repeated till reviewers and editors are satisfied with the manuscript.
CLINICAL TRIAL REGISTRY
CMJ requires registration of clinical trials. CMJ would consider publishing clinical trials that have been registered with a clinical trial registry that allows free online access to public. Registration in the following trial registers is acceptable: http://www.chictr.org.cn/; http://www.ctri.in/; http://www.clinicaltrials.gov/; http://www.isrctn.org/; http://www.trialregister.nl/trialreg/index.asp; and http://www.umin.ac.jp/ctr and any registry that is a primary register of the WHO International Clinical Trials Registry Platform (ICTRP; www.who.int/ictrp/network/primary/en/index.html).
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The DataCite organization (https://www.datacite.org/) has a growing list of repositories for research data.
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http://www.icmje.org/news-and-editorials/data_sharing_june_2017.pdf
AUTHORSHIP CRITERIA
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Substantial contributions to the conception and design, or the acquisition, analysis, or interpretation of the data;
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The drafting of the article or critical revision for important intellectual content;
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Final approval of the version to be published;
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Agreement to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the article are appropriately investigated and resolved.
Changes in authorship
CONFLICTS OF INTEREST/COMPETING INTERESTS
All authors must disclose any and all conflicts of interest, they may have with publication of the manuscript or an institution or product that is mentioned in the manuscript and/or is important to the outcome of the study presented. Authors should also disclose conflicts of interest with products that compete with those mentioned in their manuscript. A conflict of interest may exist when an author (or the author’s institution or employer) has financial or personal relationships or affiliations that could influence (or bias) the author’s decisions, work, or manuscript.
RETRACTION POLICY
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Editors have clear evidence that the findings are unreliable, either as a result of misconduct (e.g., data fabrication) or honest error (e.g., miscalculation or experimental error).
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The findings have previously been published elsewhere without proper crossreferencing, permission or justification (i.e., cases of redundant publication).
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It constitutes plagiarism.
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It reports unethical research.
SUBMISSION OF MANUSCRIPTS
Title page/First page file/Cover letter:
This file should provide:
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The type of manuscript (original article, review article, meta analysis, correspondence, etc.). Title of the manuscript, names of all authors/contributors and name(s) of department(s) and/or institution(s) to which the work should be credited. All information which can reveal your identity should be here. Use text/rtf/doc files. Do not zip the files.
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The total number of pages, total number of photographs and word counts separately for abstract and for the text (excluding the references, tables and abstract).
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Source(s) of support in the form of grants, equipment, drugs, or all of these.
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Acknowledgment, if any. One or more statements should specify: (1) contributions that need acknowledging but do not justify authorship, such as general support by a departmental chair; (2) acknowledgments of technical help; and (3) acknowledgments of financial and material support, which should specify the nature of the support. This should be included in the title page of the manuscript and not in the main article file.
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If the manuscript was presented as part at a meeting, the organization, place, and exact date on which it was read. A full statement to the editor about all submissions and previous reports that might be regarded as redundant publication of the same or very similar work. Any such work should be referred to specifically, and referenced in the new paper. Copies of such material should be included with the submitted paper, to help the editor decide how to handle the matter.
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Registration number in case of a clinical trial and where it is registered (name of the registry and its uniform resource locator [URL]).
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Conflicts of Interest of each author/contributor. A statement of financial or other relationships that might lead to a conflict of interest, if that information is not included in the manuscript itself or in an authors’ form.
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A statement that the manuscript has been read and approved by all the authors, that the requirements for authorship as stated earlier in this document have been met, and that each author believes that the manuscript represents honest work, if that information is not provided in another form.
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The name, address, E-mail, and telephone number of the corresponding author, who is responsible for communicating with the other authors about revisions and final approval of the proofs.
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Author contributions. Contributors should provide a description of contributions made by each of them towards the manuscript. Description should be divided into following categories, as applicable: concept, design, definition of intellectual content, literature search, clinical studies, experimental studies, data acquisition, data analysis, statistical analysis, manuscript preparation, manuscript editing, and manuscript review. One author should take responsibility for the integrity of the work as a whole from inception to published article and should be designated as “corresponding author”.
Blinded article file
The main text of the article, beginning from Abstract till References (including tables) should be in this file. The file must not contain any mention of the authors’ names or initials or the institution at which the study was done or acknowledgments. Page headers/running title can include the title but not the authors’ names. Manuscripts not in compliance with the Journal’s blinding policy will be returned to the corresponding author. Use rtf/doc files. Do not zip the files. Do not incorporate images in the file. The pages should be numbered consecutively, beginning with the first page of the blinded article file.
Images
Submit good quality color images.Size of the image can be reduced by decreasing the actual height and width of the images (keep up to 1600 × 1200 pixels or 5–6 inches). Images can be submitted as JPEG files and should be supplied at an effective resolution of 300 pixels per inch (PPI). Do not zip the files. Legends for the figures/images should be included at the end of the article file.
The copyright transfer form
The copyright transfer form has to be submitted in original with the signatures of all the contributors as a scanned image via CMJ online manuscript submission and review system: http://edmgr.ovid.com/cmj/accounts/CMJ_Copyright_form_FINAL_updated.pdf.
PREPARATION OF MANUSCRIPTS
COPIES OF ANY PERMISSION(S)
TYPES OF MANUSCRIPTS
Editorials are usually commissioned, however, unsolicited editorials are also welcome. We are keen to consider editorials or ideas for editorials from authors outside China. Editorials can be up to 2000 words length with no more than 25 references.
Original Article
These include randomized controlled trials, basic medical studies, studies of screening and diagnostic test, outcome studies, cost effectiveness analyses, case-control series, and in vitro study.
Abstract
The abstract of original articles in CMJ is a structured abstract, which includes the following four parts: Background, methods, results, and conclusions. The total number of words in abstract is no more than 300 words.
Introduction
State the purpose and summarize the rationale for the study or observation.
Methods
It should include and describe the following aspects:
Ethics
When reporting studies on human beings, author should indicate whether the procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional or regional) and with the Helsinki Declaration of 1975, as revised in 2000 (available at http://www.wma.net/e/policy/17-c_e.html). For prospective studies involving human participants, authors are expected to mention about approval of regional/national/institutional or independent ethics committee or review board, obtaining informed consent from adult research participants and obtaining assent for children aged over 7 years participating in the trial. The age beyond which assent would be required could vary as per regional and/or national guidelines. Ensure confidentiality of subjects by desisting from mentioning participants’ names, initials or hospital numbers, especially in illustrative material. When reporting experiments on animals, indicate whether the institution’s or a national research council’s guide for, or any national law on the care and use of laboratory animals was followed.
Study design
Describe your selection of the observational or experimental participants (patients or laboratory animals, including controls) clearly, including eligibility and exclusion criteria and a description of the source population.
Technical information
Identify the methods, apparatus (give the manufacturer’s name and address in parentheses), and procedures in sufficient detail to allow other workers to reproduce the results.
Give references to established methods, including statistical methods (see below); provide references and brief descriptions for methods that have been published but are not well known; describe new or substantially modified methods, give reasons for using them, and evaluate their limitations. Identify precisely all drugs and chemicals used, including generic name(s), dose(s), and route(s) of administration.
Reports of randomized clinical trials should present information on all major study elements, including the protocol, assignment of interventions (methods of randomization, concealment of allocation to treatment groups), and the method of masking (blinding), based on the CONSORT Statement (http://www.consort-statement.org).
Reporting Guidelines for Specific Study Designs
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Initiative |
Type of Study |
Source |
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CONSORT |
Randomized controlled trials |
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STARD |
Studies of diagnostic accuracy |
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QUOROM |
Systematic reviews and meta-analyses |
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STROBE |
Observational studies in epidemiology |
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MOOSE |
Meta-analyses of observational studies in epidemiology |
http://www.consort-statement.org/Initiatives/MOOSE/moose.pdf |
Statistics
Results
Discussion
Study Protocol
The length of the article is about 4000 words. The study protocol should have a structured abstract including: Background, Methods/Design, Discussion, and Trial Registration (if the submitted manuscript is a clinical trial).
Clinical Guideline
Official recommendations from professional organizations on issues related to clinical practice and health care delivery. CMJ is flexible with length, reference, and other format requirements given the variability in the format of guidelines developed by different organizations. A concise table or concise graphic summarizing the recommendations and other key points is desirable. Guidelines that meet standards (http://www.equator-network.org/) will fare more favorably than those that do not.
Meta Analysis
Review Article
Viewpoint
Clinical Observation
Correspondence
Idea and Opinion
Comment
REFERENCES
Authors are responsible for the accuracy and completeness of their references and for correct citation of the text. References should be numbered consecutively in the order in which they are first mentioned in the text (not in alphabetic order). Identify references in text, tables, and legends by Arabic numerals in superscript after the punctuation marks. References cited only in tables or figure legends should be numbered in accordance with the sequence established by the first identification in the text of the particular table or figure. Use the style of the examples below, which are based on the Vancouver formats. The titles of journals should be abbreviated according to the style used in Index Medicus. Use complete name of the journal for non-indexed journals. Avoid using abstracts as references. Information from manuscripts submitted but not accepted should be cited in the text as “unpublished observations” with written permission from the source. Avoid citing a “personal communication” unless it provides essential information not available from a public source, in which case the name of the person and date of communication should be cited in parentheses in the text.
Examples of journal citations
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Meng FG, Jia FM, Ren XH, Ge Y, Wang KL, Ma YS, et al. Vagus Nerve Stimulation for Pediatric and Adult Patients with Pharmaco-resistant Epilepsy. Chin Med J 2015;128:2599-604. doi: 10.4103/0366-6999.166023.
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Wang YS, Miao LY, Liu L, Cai HR, Ding JJ, Ren SX, et al. Serum cytokine levels in patients with advanced non-small cell lung cancer: Correlation with clinical outcome of erlotinib treatment. Chin Med J 2013; 126: 3931-5. doi: 10.3760/cma.j.issn.0366-6999.20130578
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Chen C, Hao S, Cheng T. Heterogeneity of hematopoietic stem cell (in Chinese). Natl Med J China 2015;36:878- 82. doi: 10.3760/cma.j.issn.0253-2727.2015.10.018.
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Brown MS, Goldstein JL. Cholesterol feedback: From Schoenheimer’s bottle to Scap’s MELADL.J Lipid Res 2009;50 Suppl:S15-27. doi: 10.1194/jlr.R800054-JLR200.
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Fraser GL, Devlin JW, Worby CP, Alhazzani W, Barr J, Dasta JF, et al. Benzodiazepine versus nonbenzodiazepine- based sedation for mechanically ventilated, critically ill adults: A systematic review and meta-analysis of randomized trials. Crit Care Med 2013;41(9 Suppl 1):S30-8. doi:10.1097/CCM.0b013e3182a16898.
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Ozben T, Nacitarhan S, Tuncer N. Plasma and urine sialic acid in non-insulin dependent diabetes mellitus. Ann Clin Biochem 1995; 32 (Pt 3): 303-6. doi: 10.1177/000456329503200307.
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Joffe A, Anton N, Lequier L, Vandermeer B, Tjosvold L, Larsen B, et al. Nutritional support for critically ill children. Cochrane Database Syst Rev 2009;2:CD005144. doi: 10.1002/14651858.CD005144.pub2.
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Weinstein L, Swartz MN. Pathogenic properties of invading microorganisms. In: Sodeman WA Jr., Sodeman WA, eds. Pathologic physiology: mechanisms of disease. Philadelphia: Saunders; 1974: 457-472.
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Anderson SC, Poulsen KB. Anderson’s electronic atlas of hematology. Philadelphia: Lippincott Williams & Wilkins, 2002.
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Cumulative number of reported cases of severe acute respiratory syndrome (SARS). Geneva: World Health Organization, 2003. Available from: http://www.who.int/csr/sarscountry/2003_04_04/en/. [Last accessed on 2003 April 9].
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Tables should be self-explanatory and should not duplicate textual material.
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Number tables, in Arabic numerals, consecutively in the order of their first citation in the text and supply a brief title for each.
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Place explanatory matter in footnotes, not in the heading.
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Explain in footnotes all non-standard abbreviations that are used in each table.
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Obtain permission for all fully borrowed, adapted, and modified tables and provide a credit line in the footnote.
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For footnotes use the following symbols, in this sequence: *, †, ‡, §, ||, ¶, **, ††, ‡‡.
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Tables with their legends should be provided at the end of the text after the references. The tables along with their number should be cited at the relevant place in the text.
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Figures should be numbered consecutively according to the order in which they have been first cited in the text.
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Labels, numbers, and symbols should be clear and of uniform size. The lettering for figures should be large enough to be legible after reduction to fit the width of a printed column.
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Symbols, arrows, or letters used in photomicrographs should contrast with the background and should be marked neatly with transfer type or by tissue overlay and not by pen.
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Titles and detailed explanations belong in the legends for illustrations not on the illustrations themselves.
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When graphs, scatter-grams or histograms are submitted the numerical data on which they are based should also be supplied.
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The photographs and figures should be trimmed to remove all the unwanted areas.
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If photographs of individuals are used, their pictures must be accompanied by written permission to use the photograph.
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If a figure has been published elsewhere, acknowledge the original source and submit written permission from the copyright holder to reproduce the material. A credit line should appear in the legend for such figures.
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Legends for illustrations: Type legends (maximum 40 words, excluding the credit line) with Arabic numerals corresponding to the illustrations. When symbols, arrows, numbers, or letters are used to identify parts of the illustrations, identify and explain each one in the legend. Explain the internal scale (magnification) and identify the method of staining in photomicrographs.
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Final figures for print production: ensure that the image has a minimum resolution of 300 PPI or 1800 × 1600 pixels in JPEG or TIFF format.
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The Journal reserves the right to crop, rotate, reduce, or enlarge the photographs to an acceptable size.
SENDING A REVISED MANUSCRIPT
ARTICLE PUBLISHING FEE
COPYRIGHTS
CHECKLIST
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Signed by all contributors;
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Previous publication/presentations mentioned;
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Source of funding mentioned;
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Conflicts of interest disclosed.
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Last name and given name provided along with Middle name initials (where applicable);
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Author for correspondence, with E-mail address provided;
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Identity not revealed in paper except title page (e.g., name of the institute in Methods, citing previous study as “our study”, names on figure labels, name of institute in photographs, etc.).
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Use only 10- or 12-point font size;
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Page numbers included at the bottom;
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Title page contains all the desired information;
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Abstract page contains the full title of the manuscript;
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Abstract provided (structured abstract of 300 words for original articles, meta analysis [Background, Methods, Results, Conclusions] and review articles [Objective, Data sources, Study selection, Results, Conclusions]);
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Key words provided (three to six words) Introduction should be short and arresting. State the purpose of the article and summarize the rationale for the study or observation. Give only strictly pertinent references;
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The references cited in the text should be after punctuation marks;
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References according to the journal’s instructions, punctuation marks checked;
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Send the article file without “Track Changes”.
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Uniformly American English;
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Write the full term for each abbreviation at its first use in the title, abstract, keywords and text separately unless it is a standard unit of measure. Numerals from 1 to 10 spelt out;
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Numerals at the beginning of the sentence spelt out;
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Check the manuscript for spelling, grammar, and punctuation errors;
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If a brand name is cited, supply the manufacturer’s name and address (city and state/country);
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Species names should be in italics.
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No repetition of data in tables and graphs and in text;
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Actual numbers from which graphs drawn, provided;
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Figures necessary and of good quality (color);
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Table and figure numbers in Arabic letters (not Roman);
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Figure legends provided (not more than 40 words);
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Patients’ privacy maintained (if not permission taken);
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Credit note for borrowed figures/tables provided;
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Write the full term for each abbreviation used in the table as a footnote.
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ICMJE: http://www.icmje.org.
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Equator Network: Enhancing the Quality and Transparency of Health Research: http://www.equator-network.org/.


