Instructions for Authors

Editorial Policy

Manuscripts submitted for publication in this journal must not have been previously published and are not under consideration for publication elsewhere. All manuscripts accepted for publication are peer-reviewed. As a result of the editorial review process, a manuscript may be accepted without change, recommended for revision and further review, or rejected. Manuscripts are accepted with the understanding that authors have obtained the authority for publication and they have performed the studies under the rules for animal experiments, clinical studies and biodiversity rights. If accepted, the manuscript should not be published elsewhere in the same form, in either the same or another language, without the consent of the Editors and Publisher. Authors are responsible for the scientific accuracy of the papers. The Chulalongkorn Medical Journal assumes no responsibility for conclusions and errors made by authors.

Peer Review

The Chulalongkorn Medical Journal is committed to peer-review integrity and upholding the highest standards of review. Once the manuscript has been assessed for suitability by the editor, it will then be double blind peer reviewed by independent, anonymous expert referees.

Once the article is accepted for publication, it will be sent to the Editorial Coordinator for copy editing, formatting, and copyright requests. All articles will be made available freely online at the time of publication.

A typical timeline from submission to publication is 1 week for initial editorial assessment, 4-8 weeks for peer review, 2-8 weeks for author revisions (depending on the scale of revisions requested).

Publication Charges

There are no submission fees, publication fees or page charges for all types of articles in the Chulalongkorn Medical Journal. All articles published in the Chulalongkorn Medical Journal are open access and freely available online to all readers via our journal website, immediately upon publication.

Manuscript Submission

Authors are requested to submit their manuscripts in electronic from. The electronic manuscript should be submitted online to the journal website ( or e-mail ( or

Types of Articles

1. Original articles: Words limit 3,000 words, 40 references, no more than 6 figures/tables
2. Short communications: Communications are preliminary reports limited to approximately 2,000 words including 1-2 table(s)/ figure(s)
3. Review articles: The present state of knowledge in special areas provides a summary of biomedical topics
4. Mini reviews
5. Letters to the editor
6. Clinical reports
7. Journal abstracts

Manuscript Preparation

Authorship Criteria and Contributions

All listed authors should have seen and approved the final version of the manuscript.
All authors of accepted articles must sign and authorship from affirming that they have met all three of the following criteria for authorship, thereby accepting public responsibility for appropriate portions of the content:
1. Substantial contributions to conception and design, or acquisition of data, or analysis and interpretation of data.
2. Drafting the article or revising it critically for important intellectual content.
3. Approval of the version to be published and all subsequent versions.

If authorship is attributed to a group (such as for multi-center trails) the group must designate one or more individuals as authors or members of a writing group who meet full authorship criteria and who accepts direct responsibility for the manuscript.

Other group members who are not author should be listed in the Acknowledgments section of the manuscript as participating investigators.

Individuals who not meet the criteria for authorship but who have made substantial, direct contributions to the work (e.g. purely technical help, writing assistance, general or financial or material support) should be acknowledged in the Acknowledgment section of the manuscript, with a brief description of their contributions. Authors should be obtain written permission from anyone they wish to list in the Acknowledgment section.

Redundant, Duplicate or Fraudulent Publication

Author must not simultaneously submit their manuscripts to author publication if that manuscript is under consideration by any other journals.
Redundant or duplicate publication is a paper that overlaps substantially with one already published in print or electronic media. At the time of manuscript submission, authors must inform the editor about all submission and previous publications that might be regard as redundant or duplicate publication of the same or very similar work. Any such publication must be referred to and referenced in the new paper.
Copies of such material should be included with the submitted paper as a supplemental file.

Authors must not:
• Willfully and knowingly submit false data
• Submit data form source not the authors’ own
• Submit previously published material (with the exception of abstracts) without correct and proper citation
• Omit reference to the works of other investigators which established a priority
• Falsely certify that the submitted work is original
• Use material previously published elsewhere without prior written approve of the copyright holder

Title Page

The title page must be written in English and should include:
• The name (s) of the author (s)
• A concise and informative title
• The affiliation (s) and address (es) of the author (s)
• The e-mail address and telephone number of the corresponding author


Please provide a structured abstract in English of 250 words which should be divided into the following sections:
Objective (s)
Result (s)


Please provide 3 to 5 keywords which can be used for indexing purposes.

Text Formatting

The text should be organized in the following order: introduction, methods, results, Discussion, Acknowledgment, References, Tables and figures. Manuscripts should be submitted in Word.
• Use a normal, plain font (e.g., 12-point Times New Roman) for text.
• Use the automatic page numbering function to numbers the pages.
• Do not use field functions.
• Use tap stops or other commands for indents, not the space bar.
• Use the table function, not spreadsheets, to make tables.
• Use the equation editor or MathType for equations.


Please use no more than three levels of displayed headings.


Abbreviations should be defined at first mention and used consistently thereafter.


Footnotes on the title page are not given reference symbols. Footnotes to the text are numbered consecutively; those the tables should be indicated by superscript lower-case letters (or asterisks for significance values and other statistical data).


Acknowledgment of people, grants, funs, etc. should be place in a separate section before the reference list. The names of the funding organizations should be written in full.


• All tables are to be numbered using Arabic numerals.
• Tables should always be cites in text in consecutive numerical order.
• For each table, please supply a table heading. The table title should explain clearly and concisely the components of the table.
• Identify any previously published material by giving the original source in the form of a reference at the end of the table heading.
• Footnotes to tables should be indicated by superscript lower-case letters (or asterisks for significance values and other statistical data) and included beneath the table body.


• Supply all figures electronically.
• Indicate what graphics program was used to create the artwork.
• For vector graphics, the preferred format is EPS; for halftones, please use TIFF format. MS office file are also acceptable.
• Vector graphics containing fonts must have the fonts embedded in the file.
• Name your figure files with “Fig” and the figure number, e.g., Fig1.eps.


List the references in consecutive, numerical order, as they are cites in the text. Use Vancouver Style. If the list of authors exceeds 6, the first 6 authors follow by et al should be listed for those references. Abbreviations for journal names should conform to those used in MEDLINE.

Example of references:

Journal articles
1. Porntaveetus T, Theerapanon T, Srichomthong C, Shotelersuk V. Cole-Carpenter syndrome in a patient from Thailand. Am J Med Genet A 2018;176:1706-10.
2. Udomsinprasert W, Kitkumthorn N, Mutirangura A, Chongsrisawat V, Poovorawan Y, Honsawek S. Global methylation, oxidative stress, and relative telomere length in biliary atresia patients. Sci Rep 2016;6:26969.

1. Dooley J, Lok A, Garcia-Tsao G, Pinzani M. Sherlock's Diseases of the Liver and Biliary System. 13th ed. London: WILEY Blackwell; 2018. p.72-95.
2. Bass HW. Chromosomes. In: Krebs JE, Goldstein ES, Kilpatrick ST, eds. Lewin's GENES XII. 12th ed. Burlington: Jones & Bartlett Learning; 2018. p.161-87

Electronic article
1. Annas GJ. Resurrection of a stem-cell funding barrier-Dickey-Wicker in count. N Engl J Med [Internet]. 2010 [cited 2011 Jun 15];363:1687-9. Available from: