Instructions to Authors

The Acta Medica Philippina is a peer-reviewed general medical and health science journal that is published four times a year by the University of the Philippines Manila and the Department of Science and Technology of the Government of the Philippines, and publishes original scientific papers in the field of basic and clinical medical or health-related research. It has complete editorial independence from its publishers. The editor-in-chief of the Acta is Jose Maria C. Avila, MD. The articles it accepts for publication may be in the form of collective and current reviews, original papers, case reports, lectures, essays, editorials, abstracts or letters to the editor. Original scientific papers and articles of a medical or public health nature are preferred, and the Acta shall accept journal articles from publications from anyone, provided criteria are met. The Acta is the most widely circulated professional health publication in the Philippines and likewise reaches key medical libraries in Asia and the world. It has been in continuous publication since 1939.

All manuscripts, correspondence and editorial business should be sent to Acta Medica Philippina, College of Medicine, University of the Philippines, 547 Pedro Gil Street, P.O Box 593, Manila 1000, Philippines. However, email submissions are also accepted. Manuscripts are received with the understanding that they are not under simultaneous consideration by another publisher. Accepted manuscripts become the permanent property of the Acta Medica and may not be republished without permission from the Editor. These manuscripts are subject to editorial modifications to bring them in conformity with the style of the journal. Statements or views expressed by an author or authors are not the responsibilities of the editor or publisher.


A covering letter must accompany all manuscripts with one author designated as correspondent, providing his complete mailing address, telephone number, e-mail address and fax number. In order for a manuscript to be considered, reviewed or edited, the following statement must be signed by all the authors: “I/We have been sufficiently involved in this work to take public responsibility for its validity and final presentation as an original publication.” Whenever applicable, there should also be a written declaration that the article had written/informed consent for publication from the involved subject/s, had conformed with ethical standards, and/or had been reviewed by the appropriate ethics committee. The transmittal letter must include the statement “This paper has not been published and is not under simultaneous consideration for publication elsewhere. This paper has been subjected to ethics review by (name of ethics board or committee, date) and has been endorsed favorably by the said board or committee. I/We hereby confer all copyright ownership/s to the Acta Medica Philippina in the event that this work is published in this journal.”


  1. One original and two duplicate manuscripts should be submitted. An electronic copy must also be submitted on a compact disc or sent by email. If the manuscript is sent by email, the original and duplicate manuscripts need not be submitted unless asked for. The manuscript should be typed double-spaced throughout with 1¼ cm (½ inch) paragraph indentation, using only one side of each 22 x 28 cm (8½ x 11 inch) opaque bond paper with 3-cm margins (1¼ inch) all around. Preferred font styles and sizes are: Times New Roman 12, Arial 11, Tahoma 11, & Verdana 11.
  2. The manuscript should be arranged in sequence as follows: (1) Title Page (2) Abstract (3) Text (4) References (5) Tables (6) Figures & Illustrations. A manuscript for an original article should not exceed 25 typewritten pages (including tables, figures, illustrations and references). The text for case reports should not exceed 10 pages, including the visual aids and references. All manuscripts not complying with the above shall be promptly returned.
  3. References should be selective and pertain directly to the work being reported.
  4. All the sheets of the manuscript should be labelled with the family name of the main/first author (all in capital letters) and page number (in Arabic Numeral) printed on the upper right corner.


  1. The title should be as concise as possible. Include only the full names of the authors directly affiliated with the work starting with the first name, middle initial if any, and last name. The highest educational attainment or title of the authors should be included as an attachment whenever appropriate; name and location of no more than three institutional affiliations may be included.
  2. If the paper has been presented in a scientific program or convention, provide a footnote giving the name, location and date of the meeting.


For original articles, the abstract should contain no more than 200 words and should have a structured format consisting of the objective, methodology, results and conclusion. For case reports, the abstract should be from 50 to 75 words and need not be structured. At least 3 keywords, preferably using terms from the Medical Subject Headings (MeSH) list of Index Medicus, should be listed horizontally under the abstract for cross-indexing of the article.


  1. Generally, the text should be organized consecutively as follows: Introduction, Materials and Methods, Results and Discussion (and Conclusion).
  2. All references, tables, figures and illustrations should be cited in the text, in numerical order.
  3. Even if commonly employed, all abbreviations should be spelled out once, the first time they are mentioned in the text, followed by the abbreviations enclosed in parentheses. Subsequently, the same abbreviations may be used instead of the long names.
  4. All measurements and weights should be in System International (SI) units.
  5. Acknowledgements to individuals/groups of persons, or institution/s should be included at the end of the text just before the references. Grants and subsidies from government or private institutions should also be acknowledged.


  1. References in the text should be identified by Arabic Numerals in superscript on the same line as the preceding sentence.
  2. References should be typed double-spaced on a separate sheet. They should be numbered consecutively in the order by which they are mentioned in the text. They should not be alphabetized.
  3. All references should provide inclusive page numbers.
  4. Journal abbreviations should conform with those used in PubMed.
  5. A maximum of six authors per article can be cited; beyond that, name the first three and add “ et al.”
  6. The style/punctuation approved by Acta Medica conforms to that recommended by the ICMJE, which is the ANSI standard style used by the NLM, and should follow the format of the examples shown below:

Putaala J, Metso AJ, Metso TM, et al. Analysis of 1008 consecutive patients aged 15 to 49 with first-ever ischemic stroke. Stroke. 2009;40(4):1195-203.

Centers for Disease Control and Prevention, Falls among older adults: summary of research findings [Online]. 2005 [cited 2006 Jan]. Available from

Dumitru D, Amato AA, Zwarts MJ. Nerve conduction studies. In: Dumitru D, Amato AA, Zwarts MJ, eds. Electrodiagnostic medicine, 2 nd ed. Philadelphia: Hanley and Belfus, Inc; 2002. pp. 159–217.


  1. Cite all tables consecutively in the text and number them accordingly. Create tables preferably using a spreadsheet program such as MS Excel with one table per worksheet. Tables should not be saved as image files. The content of tables should include a table number (Arabic) and title in capital letters above the table, and explanatory notes and legends as well as definitions of abbreviations used below. Recommended font is Arial Narrow size 8.
  2. Each table must be self-explanatory, being a supplement rather than a duplicate of information in the text. The use of too many tables is discouraged. If possible, limit your tables to the three (3) most important ones.


  1. Figures or graphs should be identified by Roman Numeral/s with titles and explanations underneath. The numbers should correspond to the order in which the figures/graphs occur in the text. It is recommended that figures/graphs also be submitted as image files (preferably as .jpeg or .gif files) of high resolution.
  2. All identifying data of the subject/s or patient/s under study such as name, case numbers, etc., particularly in case reports, should be removed.


  1. All illustrations/photographic prints should be submitted in duplicate and placed in separate envelopes.
  2. Black and white glossy prints, unmounted, for photographs and photomicrographs are preferred. However, digital photographs are also accepted, and they should at least be 800 x 600 dpi.
  3. Computer-generated illustrations which are not suited for reproduction should be professionally redrawn or printed on good quality laser printers. Photocopies are not acceptable.
  4. All lettering for illustration should be done professionally and should be of adequate size to retain even after size reduction.
  5. The principal author’s last name and illustration number should be placed at the back of each illustration/photo print in soft pencil. An arrow on the gummed label indicating the top should be drawn.
  6. For photomicrographs, the stain used (ex. H & E) and magnification (ex. X400) should be included in the description.

Editorial Office Contact Information:
For comments, questions, and concerns:
Acta Medica Philippina
PM 202, 2nd Flr., Paz Mendoza Building, UP College of Medicine
547 Pedro Gil St., Ermita, Manila 1000
P.O. Box 593
Editorial coordinator: Marjorie M. De Lima, RN
Telefax: +632 353-0990