About the Journal

Aims and Scope

The Siriraj Medical Journal (SMJ) aims to promote communication among researchers in the health sciences. It is published monthly and accepts manuscripts in the form of research articles, review articles, and letters to the editor. It is academically double-blinded peer-reviewed and designed for all physicians, researchers, and healthcare personnel, regardless of their specialties.

The Siriraj Medical Journal is now indexed in national and international databases for journals. It is indexed in Scopus, the Tier 1 database of the Thailand Citation Index Center (TCI), the ASEAN Citation Index (ACI), the Directory of Open Access Journals (DOAJand EBSCO.

Siriraj Medical Journal is the official publication organ of The Gastroenterological Association of Thailand (GAT), Thai Association for Gastrointestinal Endoscopy (TAGE), The International Association of Surgeons, Gastroenterologists and Oncologists (IASGO) Thailand Chapter, the International College of Surgeons (ICS) Thailand Section and the Faculty of Medicine Siriraj Hospital. The Journal, the Society and the Faculty are nonprofit organizations. SMJ is an open-access journal, which means that all content is freely available without charge to the user or their institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles or use them for any other lawful purpose without asking prior permission from the publisher or the author. This is in accordance with the BOAI definition of open access.

Publisher: The Faculty of Medicine Siriraj Hospital, Mahidol University, Thailand

ISSN: 2629-995X (Print) ISSN: 2228-8082 (Online)


History of the Journal

Since 1948, the journal has been introduced to academia under the name "Siriraj Hospital Gazette". In 2007, the journal was converted into an English version and the title was changed to "Siriraj Medical Journal." The title of the journal (Siriraj) is well known in Thailand and the East Asia region as it is the name of the oldest and largest medical school in Thailand. It is named after Prince Siriraj Kakudhabhand, the king's 18-month-old son who died from dysentery a year before the hospital's opening. The medical school was established two years later in 1890. The SMJ has continuously published more than 70 issues for the past 70 years, with a frequency of 10-12 articles per issue.


Publication Decisions

The journal will not accept articles that have been published (except in the form of an abstract) or are being considered for publication by another journal. Papers being considered here should not be submitted to other journals.

Manuscript Rejection: Causes and Remedies

• Lack of novelty, originality, and presentation of obsolete study.
• Improper rationale.
• Unimportant and irrelevant subject matter.
• Flaws in methodology.
• Lack of interpretations.
• Inappropriate or incomplete statistics.
• Inappropriateness for the journal.

Peer Review Process

The quality of the articles published in the Siriraj Medical Journal depends on the care the reviewers take in establishing that an article is of scientific repute. Three reviewers are asked to comment on each original article, and occasionally, a fourth reviewer is asked for a further opinion. As reviewers' comments are confidential and the article to be referred to is confidential, it should not be discussed with colleagues or the authors.

Editorial Review Process

All submitted manuscripts must go through rigorous editorial checks before they are sent for peer review. The manuscripts are checked for grammar and language, plagiarism, and format. Manuscripts that do not pass the initial checks will be promptly rejected without peer review.

The editor of the Siriraj Medical Journal (SMJ) is responsible for deciding which articles submitted to the journal should be published. The editor may be guided by the policies of the journal's editorial board and constrained by such legal requirements as shall then be in force regarding libel, copyright infringement, and plagiarism. The editor may confer with other editors or reviewers in making this decision.


Conflicts of Interest


Authors are required to declare any and all conflicts of interest—financial, personal, or other—that may affect the information, research, analysis, or interpretation presented in the manuscript in the structured disclosures section of every Article, Research Report, Scholarly Perspective, Innovation Report, Literature Review, Invited Commentary, and Letter to the Editor published in the Siriraj Medical Journal. A conflict of interest exists when professional judgment concerning a primary interest may be influenced by secondary interests. This information will be held in confidence by the editor-in-chief unless the manuscript is accepted, in which case a general description of the conflict, provided by the author, will be published with the article. In general, authors should err on the side of disclosing a potential conflict of interest if there is a question about whether a relationship or interest should be disclosed.



Reviewers and editors are required to declare any and all potential conflicts of interest. If an author of a manuscript under consideration has a primary appointment at the editor-in-chief's institution, decisions regarding that manuscript will be made by the deputy editor or an associate editor. If an author has a primary appointment at a deputy editor's or associate editor's institution, that deputy editor or associate editor will not be involved in the decision regarding that manuscript. If the editor-in-chief is an author of a manuscript under consideration, decisions regarding that manuscript will be made by the chair of the Journal Oversight Committee.


Editorial Board

An editorial board is appointed by the editor-in-chief to provide guidance and advice to the editor-in-chief regarding journal content and editorial focus. Each member of the Siriraj Medical Journal Board is expected to (1) present unbiased, independent, and professional advice to the editor-in-chief, (2) maintain confidentiality about editorial board activities and discussion, and (3) sign a disclosure form to affirm that they have read, understood, and agreed to abide by the conflict of interest policy and to disclose any known conflicts or state that no conflicts exist at the time. Conflicts of interest must be disclosed to the editor-in-chief, who will determine how to manage, reduce, or eliminate the conflict.



Intellectual property is a serious concern for the Journal. On submission, all articles are screened using the software 'Turnitin,' which is supported by Mahidol University. Plagiarism is suspected when the percentage of similarity is higher than 20%. The Editor-in-Chief will be informed. Clear plagiarism (use of large portions of copied text and/or data) results in rejection, while minor copying of short phrases leads to a polite notification to the authors for rewriting. If plagiarism is detected during the reviewing process by any means, all processes will be immediately halted. The Editor-in-Chief will contact the corresponding author and/or all the authors for an explanation. Rejection of the submission will occur once the explanation is unsatisfactory or the authors admit guilt. After publication, the article will be retracted if plagiarism is proven. All the authors' institutions will be contacted to explain the retraction and inform the expected future behaviors. The event of retraction will be officially announced as early as possible in the Journal.


SMJ Publication Process

The journal's policy is generally to publish the articles chronologically according to the acceptance dates. Each accepted manuscript will be formatted in accordance with the journal's style. The Editor retains the right to determine the style, and if necessary, edit and shorten any material accepted for publication.

When the galley proof is ready, the Editorial Office will send the proof to the authors to check for its completeness. Confirmation or comments from the authors must be given within 48 hours of receipt of the proof to avoid delays in the publication of the manuscript. Authors should note that major alterations to the text will not be entertained at this stage, and they are responsible for all statements made in their work, including changes made by the Editorial team and authorized by the corresponding author.

Please note that the Journal does not publish manuscripts without the author's approval of the galley proof. For this reason, once the author gives approval for publication, the Editorial Office will not be held responsible for any mistakes thereafter.


Copyright & Licensing

The journal adopts the Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) license for its content.

Users are free to share, copy, and redistribute all articles published in the Siriraj Medical Journal (SMJ) in any medium or format as long as you follow the following terms:

Attribution — You must give appropriate credit, provide a link to the material, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the publisher endorses you or your use.

NonCommercial — You may not use the material for commercial purposes.

NoDerivatives — If you remix, transform, or build upon the material, you may not distribute the modified material.

No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.