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Instructions for authors
Chinese Medical Journal (CMJ) is an international, peer-reviewed Medical progress
general medical journal published in English semimonthly by the This kind of article is mainly solicited, but we also consider
Chinese Medical Association and distributed worldwide. unsolicited articles. The length of the article is within 2000–4000
Manuscripts are welcome from any part of the world. words (not including tables, figures, and references).
MANUSCRIPT INFORMATION Review article
Review articles include systematic, critical assessments of literature
Manuscript requirements and data sources pertaining to different medical topics, such as
Manuscripts submitted to CMJ should meet the following criteria: cause, diagnosis, prognosis, therapy, or prevention, etc. The length
the material is original; the writing is clear; the study methods are is limited to 2000–4000 words (not including tables, figures, and
appropriate; the data are valid; the conclusions are reasonable and references).
supported by the data.
Brief report
Manuscript submission These articles are short reports of original studies. They should not
Authors are required to submit their manuscripts online at exceed 2500 words with no more than 2 tables and/or two
http://www.ecmj.org.cn. illustrations and 15 references.
Previous publication or duplicate submission Clinical experience
Manuscripts are considered with the understanding that they have Authors of these articles provide their experiences for diagnosis,
not been published previously and are not under consideration by treatment or prevention of diseases. The length is up to 2500 words
another publication. Copies of possibly duplicative materials that with no more than 2 tables and/or two illustrations and 15
have been previously published or are being considered elsewhere references.
must be provided at the time of manuscript submission.
Viewpoint
Personal views are welcome and the length should be 1000–3000
Previous presentation
words (not including tables, figures, and references). Authors of
A complete report following presentation at a meeting or
this type of articles should sign their real names; no anonymous
publication of preliminary findings elsewhere (e.g., an abstract) can
pieces are published.
be considered.
Case report
CATEGORIES OF ARTICLES
Authors usually describe one to three patients or a single family.
The text is limited to no more than 2500 words, and up to 15
CMJ publishes editorial, original article, review article, medical
references.
progress, brief report, viewpoint, case report, letter, and many other
categories of articles. Topics of interest include all subjects that
Clinical solutions
relate to the practice of medicine and research.
The articles are evidence-based reviews of topics relevant to
practicing physicians. Articles in this series should include the
Editorial
following sections: case report, clinical overview, strategies,
These are usually commissioned, however, unsolicited editorials clinical difficulties, and author’s personal opinions. The text is
are welcome. We are keen to consider editorials or ideas for limited to 3000 words and a small number of figures and tables.
editorials from authors outside China. Editorials should be up to
2000 words long with no more than 25 references. Images for diagnosis
Authors can provide here with typical images of common or
Original article uncommon medical conditions. This feature is intended to capture
Manuscripts on epidemiological studies, studies of social medicine, the sense of visual discovery and variety that physicians experience.
clinical trials, especially large scale randomized controlled trials It is not intended as a vehicle for case reports.
are welcome. Each manuscript should clearly state an objective or
hypothesis, the methods, the main results of the study and the Letter
conclusions. The length is limited to 2000–4000 words (not Letters to editors discussing a recent CMJ article should be
including tables, figures, and references). More than 20 references received within 3 months of the article’s publication and should not
are encouraged to be cited in this kind of articles. exceed 500 words of text and 5 references. Letters should also be
submitted online.
Meta analysis
Only results of meta analysis are reported in this kind of article. AUTHOR INFORMATION
The length of the article is within 2000–4000 words (not including
tables, figures, and references). Designate a corresponding author and provide a complete address,
telephone and fax numbers, and E-mail address. written permission. Chinese Medical Association keeps the right to
use these manuscripts in any form, including print, video, audio,
Authorship requirements and digital.
Each author should have participated sufficiently in the work to
take public responsibility for appropriate portions of the content. MANUSCRIPT PREPARATION
One or more authors should take responsibility for the integrity of
the work as a whole, from inception to published article. Manuscripts should be prepared in accordance with the Uniform
Authorship credit should be based on (1) substantial contributions Requirements for Manuscripts Submitted to Biomedical Journals
to conception and design, or acquisition of data, or analysis and by the International Committee of Medical Journal Editors (ICMJE)
interpretation of data; and (2) drafting the article or revising it (www.icmje.org).
critically for important intellectual content; and (3) final approval
of the version to be published. Conditions 1, 2, and 3 must all be Submit the original manuscript online; use 1 side of standard-sized
met.1 page and 1.5 cm margins. For Chinese authors, submission of a
Chinese version of the manuscript (or abstract) is recommended.
Group authorship
If authorship is attributed to a group, all members of the group must Use only 10- or 12-point font size.
meet the full criteria and requirements for authorship as described
above. A group must designate at least one individual as On the title page include the full names and affiliations of all
corresponding author. Other group members may be listed in an authors. If an author’s affiliation has changed since the work was
Acknowledgment. done, list the new affiliation as well. Titles should be concise and
descriptive. The name, address, telephone number, fax number, and
Conflicts of interest E-mail address of the correspondence author should be addressed.
Authors should indicate relevant conflicts of interest, including Any grant support that requires acknowledgment should be
specific financial interests relevant to the subject of their mentioned on this page.
manuscript, in their covering letter. Authors without relevant
financial interests in the manuscript should indicate no such Measurements of length, height, weight, and volume should be
interest. reported in metric units (meter, kilogram, or liter) or their decimal
multiples. Temperatures should be given in degrees Celsius. Blood
EDITORIAL REVIEW AND PUBLICATION pressures should be given in millimeters of mercury. All
hematological and clinical chemistry measurements should be
Peer review reported in the metric system in terms of the International System
A CMJ editor reviews submitted manuscripts initially. Manuscripts Units (SI).
with insufficient priority for publication are rejected promptly.
Other manuscripts are sent to expert consultants for peer review. Use nonproprietary names of drugs, devices, and other products,
Peer reviewer identities are kept confidential. The manuscript under unless the specific trade name of a drug is directly relevant to the
review is not revealed to anyone other than peer reviewers and discussion.
editorial staff. We encourage authors to suggest the names of
possible reviewers, but we reserve the right of final selection. Do not use abbreviations in the title or abstract and limit their use in
the text.
Rejected manuscripts
Rejected manuscripts and reasons for rejection can be found online. A covering letter signed by all authors includes (1) information on
prior or duplicate publication or submission elsewhere of any part
Editing of the study; (2) the statement that the manuscript has been read
Accepted manuscripts are copyedited first by native speakers and and approved by all the authors and that the criteria for authorship
then by CMJ editors according to CMJ style and returned to the have been met; (3) the statement on financial or other conflict of
author for approval. Authors are responsible for all statements made interests; and (4) any suggestions such as referring possible
in their work, including changes made by the editor and authorized unqualified reviewers due to conflict of interests, etc. The
by the corresponding author. corresponding author must sign the acknowledgment statement.
Authors should obtain written permission from all individuals
Publication named in an acknowledgment.
Authors are required to pay page fee if their manuscripts are
accepted for publication. The publisher will provide the author (s) 2 JOURNAL STYLE
copies of the journal free of charge.
Tables
Copyright Tables should be simple and no duplicate information should
The Chinese Medical Association (CMA) is the owner of all appear in the text of the article. Tables should be numbered
copyrights to any articles published in the journal. Published consecutively, and headed by a concise title. Place explanatory
manuscripts become the permanent property of the Chinese matter in footnotes, not in the heading. Explain in footnotes all
Medical Association and may not be published elsewhere without non-standard abbreviations that are used in each table. For
footnotes use the following symbols in this sequence: *, †, ‡, §, ||, ¶, 4. Dannenberg AM. Immune mechanisms in the pathogenesis of
**, ††, ‡‡. pulmonary tuberculosis. Rev Infect Dis 1989; 11 Suppl 2:
s369-s378.
Figures 5. Payne DK, Sullivan MD, Massie MJ. Women’s psychological
Complete sets of illustrations must be submitted with legends typed reactions to breast cancer. Semin Oncol 1996; 23(1 Suppl 2):
on the same page. Only clear photographs are acceptable. All 89-97.
lettering must be legible after reduction to column size. 6. Ozben T, Nacitarhan S, Tuncer N. Plasma and urine sialic acid in
Magnification and staining should be indicated when pertinent. non-insulin dependent diabetes mellitus. Ann Clin Biochem 1995;
32 (Pt 3): 303-306.
Abbreviations 7. Turan I, Wredmark T, Fellander-Tsai L. Arthroscopic ankle
Use only standard abbreviations. Avoid abbreviations in the title arthrodesis in rheumatoid arthritis. Clin Orthop 1995; (320):
and abstract. The full term for which an abbreviation stands should 110-114.
precede its first use in the text unless it is a standard unit of 8. Cumulative number of reported cases of severe acute respiratory
measurement. syndrome (SARS). Geneva: World Health Organization, 2003.
(Accessed April 9, 2003 at http://www.who.int/csr/sarscountry/
Ethical requirement 2003_04_04/en/.)
For experimental investigations of human subjects, state in the
Methods section that an appropriate institutional review board * : It is especially needed to note “(Chin)” for articles published in
approved the project. For those investigators who do not have Chinese.
formal ethics review committees, the principles outlined in the
Declaration of Helsinki 2 should be followed. For investigations of Authors are responsible for the accuracy and completeness of their
human subjects, state in the Methods section the manner in which references and for correct citation of the text.
informed consent was obtained from the study participants.
REPORT OF ORIGINAL DATA
Patient descriptions, photographs, and pedigrees
Include a signed statement of informed consent to publish (in print Abstract
and online) patient descriptions, photographs, and pedigrees from Include a structured abstract of no more than 300 words for original
all persons (parents or legal guardians for minors) who can be articles, meta analysis, brief report, clinical experience
identified in such written descriptions, photographs, or pedigrees. (Background, Methods, Results, Conclusions) and review articles
Such persons should be shown the manuscript before its (Objective, Data sources, Study selection, Results, Conclusions);
submission. an informative abstract for medical progress, viewpoint, case report,
clinical solutions and images for diagnosis.
Permissions required to reproduce or adapt material
Acknowledge all text, illustrations, and tables adapted or Keywords
reproduced from other publications and submit permission from the Three to 6 words or short phrases should be provided at the top of
original publishers (or other copyright owner) to republish in print, the abstract page as keywords. Terms from the medical subject
online, and licensed versions of CMJ. heading (MeSH) list of Medline should be used; if suitable MeSH
terms are not yet available for recently introduced terms, present
References terms may be used.
Number references in the order they appear in the text; do not
alphabetize. In text, tables, and legends, identify references with Introduction
superscript Arabic numerals. When listing references, abbreviate Introduction should be short and arresting. State the purpose of the
titles of journals according to Medline. Note: List authors and/or article and summarize the rationale for the study or observation.
editors up to 6; if more than 6, list the first 6 authors followed by et Give only strictly pertinent references and do not include data or
al. conclusions from the work being reported.
Examples of reference style: Methods
1. Liu XP, Long DY, Dong JZ, Liu XQ, Fang DP, Hao P, et al. Describe your selection of the observational or experimental
Recurrent atrial tachycardia and atrial fibrillation after subjects (patients or laboratory animals, including controls) clearly.
circumferential pulmonary vein ablation: What’s the difference? Identify the age, sex, and other important characteristics of the
Chin Med J 2005; 118: 1773-1778. subjects.
2. Xie SZ, Gu MJ, Cheng YP. Inhibitory effect of
medroxyprogesterone acetate on angiogenesis induced by Identify the methods, apparatus (list the manufacturer’s name and
malignant neoplasm. Chin J Obstet Gynecol (Chin)* 1998; 33: original country in parentheses), and procedures in sufficient detail
113-114. to allow other workers to reproduce the results. Give references to
3. Weinstein L, Swartz MN. Pathogenic properties of invading established methods, including statistical methods; provide
microorganisms. In: Sodeman WA Jr., Sodeman WA, eds. references and brief descriptions for methods that have been
Pathologic physiology: mechanisms of disease. Philadelphia: published but are not well known; describe new or substantially
Saunders; 1974: 457-472. modified methods, give reasons for using them, and evaluate their
limitations. Identify precisely all drugs and chemicals used, illustrations.
including generic name (s), dose (s), and route (s) of
administration. Check all references for accuracy and completeness. Put references
in proper format in numerical order, making sure each is cited in
Reports of randomized clinical trials should present information on the text.
all major study elements including the protocol (study population,
interventions or exposures, outcomes, and the rationale for Include written permission from each individual identified as a
statistical analysis), assignment of interventions (methods of source for personal communication.
randomization, concealment of allocation to treatment groups), and
the method of masking (blinding). Authors are recommended to Include informed consent forms for identifiable patient descriptions,
refer to the CONSORT Statement 3 for details. photographs and pedigrees.
Results Keep copies of everything submitted.
Overall describe the major findings of the study. Present your
results in logical sequence in the text, tables and illustrations. Do Manuscript inquiries
not repeat in the text all the data in the tables or illustrations; Tel: 86-10-85158321. Fax: 86-10-85158333. Email: cmj@cma.org.
emphasize or summarize only important observations. cn.
Discussion REFERENCES
Summarize the major findings. Discuss possible problems with the
methods used. Compare your results with previous work. Discuss 1. International Committee of Medical Journal Editors. Uniform
the clinical and scientific (if any) implications of your findings and requirements for manuscripts submitted to biomedical journals.
their limitations. Suggest further work. Produce a succinct (Accessed September 10, 2009 at: http://www.icmje.org)
conclusion. 2. World Medical Association. Declaration of Helsinki: Ethical
principles for medical research involving human subjects.
MANUSCRIPT CHECKLIST (Accessed September 6, 2005 at: http://www.wma.net/e/policy/
pdf/ 17c.pdf)
Submit complete text of your manuscript online (including tables, 3. Schulz KF, Altman DG, Moher D, for the CONSORT Group.
figures, etc), in addition, domestic authors should submit Chinese The CONSORT statement: revised recommendations for
version of the complete text or its abstract. improving the quality of reports of parallel-group randomized
trials. (Accessed October 28, 2010 at: http://www.consort-
Review the sequence: covering letter, title page, key words and statement.org)
abstract, text, acknowledgments, references, tables, legends for
