Introduction

Medical Letter (Med Ltr) is an international, peer-reviewed, open-access journal dedicated to publishing high-quality research in all areas of medical and health sciences. The journal welcomes original and innovative contributions that advance medical knowledge, clinical practice, public health, and healthcare research.

Authors are encouraged to carefully read and follow these guidelines before submitting their manuscripts.

Types of Manuscripts Accepted

The journal accepts the following categories of manuscripts:

• Original Research Articles
• Review Articles
• Systematic Reviews and Meta-Analyses
• Case Reports
• Short Communications
• Clinical Studies
• Perspectives and Commentaries
• Letters to the Editor
• Editorials

Manuscript Preparation

Language

Manuscripts must be written in clear and concise English. Authors whose first language is not English are encouraged to have their manuscripts professionally edited before submission.

Manuscript Format

Authors should prepare manuscripts in Microsoft Word (.doc or .docx) format using:

• Times New Roman
• Font Size: 12 pt
• Line Spacing: Double-spaced
• Margins: 1 inch (2.54 cm) on all sides
• Page Numbers: Consecutively numbered

Title Page

The title page should contain:

• Full title of the manuscript
• Short running title (maximum 50 characters)
• Full names of all authors
• Institutional affiliations of all authors
• Corresponding author's name, email address, and affiliation
• ORCID IDs (recommended)

Abstract and Keywords

Original Research Articles

• Structured abstract of 200–300 words
• Recommended headings:
  • Background
  • Methods
  • Results
  • Conclusion

Keywords

Provide 3–6 keywords immediately after the abstract.

Manuscript Structure

Original Research Articles

1. Title
2. Abstract
3. Keywords
4. Introduction
5. Materials and Methods
6. Results
7. Discussion
8. Conclusion
9. Acknowledgments (if applicable)
10. Funding Statement
11. Conflict of Interest Statement
12. References

Review Articles

1. Title
2. Abstract
3. Keywords
4. Introduction
5. Main Review Sections
6. Conclusion
7. References

References

Authors should use the Vancouver Referencing Style.

Example References

Journal Article

Ahmed S, Khan M, Ali R. Advances in cardiovascular medicine. J Med Sci. 2024;15(2):120–128.

Book

Murray PR. Medical Microbiology. 9th ed. Philadelphia: Elsevier; 2023.

Website

World Health Organization. Global Health Observatory. Available from: https://www.who.int

Authors are responsible for ensuring the accuracy of all references.

Tables and Figures

• Tables and figures should be cited in the text.
• Each table and figure must have a clear title and legend.
• Images should be submitted in high-resolution format.
• Authors must obtain permission for any previously published material.

Ethical Requirements

Research Involving Human Participants

Studies involving humans must:

• Follow the Declaration of Helsinki.
• Receive approval from an Institutional Review Board (IRB) or Ethics Committee.
• Include an ethics approval statement in the manuscript.
• Obtain informed consent from participants where applicable.

Research Involving Animals

Animal studies must comply with recognized institutional and national ethical guidelines.

Plagiarism Policy

Medical Letter has a zero-tolerance policy toward plagiarism, data fabrication, data falsification, and duplicate publication.

All submissions may be screened using plagiarism-detection software before peer review.

Authorship Criteria

Authorship should be based on substantial contributions to:

• Study conception and design
• Data collection or analysis
• Manuscript drafting or revision
• Final approval of the manuscript

All authors must approve the final submitted version.

Conflict of Interest

Authors must disclose any financial, personal, or professional relationships that could influence the research findings.

If no conflicts exist, authors should state:

“The authors declare no conflict of interest.”

Funding Statement

Authors must disclose all sources of funding received for the research.

If no funding was received, state:

“This research received no external funding.”

Peer Review Process

Medical Letter follows a Single-Blind Peer Review process.

• The identity of reviewers is kept confidential.
• Reviewers are aware of the authors’ identities.
• Each manuscript undergoes an initial editorial assessment before peer review.
• Editorial decisions are based on originality, scientific quality, ethical compliance, and relevance to the journal's scope.

The Editor-in-Chief reserves the right to accept, reject, or request revisions for submitted manuscripts.

Open Access Policy

Medical Letter is an Open Access Journal.

All published articles are freely available online immediately upon publication without subscription or access fees.

Copyright and Licensing

Authors retain copyright of their published work.

Articles are published under the Creative Commons Attribution 4.0 International (CC BY 4.0) License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Submission of Manuscripts

Authors should submit their manuscripts through the journal's online submission system or via the official editorial email provided on the journal website.

For submission inquiries, authors may contact the Editorial Office.

Publication Ethics

Medical Letter adheres to the ethical standards and best-practice guidelines of the Committee on Publication Ethics and is committed to maintaining integrity, transparency, and ethical conduct throughout the publication process.

Medical Letter (Med Ltr) welcomes high-quality contributions from researchers, clinicians, and healthcare professionals worldwide and is committed to the timely publication of scientifically sound and impactful research.