Section policies

Publication options

Research articles (original research): Original research articles present a medical or scientific advance. These manuscripts must present comprehensive studies that report innovative advances that advance knowledge on a topic of importance to the fields of biology or medicine. The conclusions of the original research article must be clearly supported by the results. These works must have an extension from 3,000 to 10,000 words. These must be at least 30 citations, where at least 90% are referenced from the last 10 years. It is desirable that at least 50% of the citations be made to works published in English to demonstrate mastery of the subject in accordance with international trends. Original research articles contain five sections: (i) Abstract, (ii) Introduction, (iii) Materials and Methods, (iv) Results and Discussions, and (v) Conclusions.

Clinical cases: Clinical cases describe an unusual disease presentation, a new treatment, an unexpected drug interaction, a new diagnostic method, or a difficult diagnosis. Case reports should include relevant positive and negative findings from the history, examination, and investigation and may include clinical photographs. In addition, the author should make it clear what the case brings to the field of medicine and include an up-to-date review of all previous cases in the field. Case series are articles presenting more than three patients. These articles should be longer than 5,000 words with no more than 6 figures, 3 tables, and 100 references. Case reports contain five sections: (i) Summary, (ii) Introduction, (iii) Presentation of the case, (iv) Discussion, (V) Conclusions.

Perspectives: Perspectives provide a personal view on medical or biomedical topics in a clear narrative voice. Articles can relate personal experiences, a historical perspective, or a scientific profile of people or topics important to medicine and biology. These articles can be submitted as a short/opinion article (no more than 2,500 words, 2 tables, and 30 references) or a long perspective (no more than 6,000 words, 2 tables, and 50 references). Perspectives contain four sections: (i) Summary, (ii) Introduction, (iii) Themes (with headings and subheadings), (iv) Conclusions and Perspectives.

Review Articles: Reviews provide a reasoned survey and examination of a particular research topic in biology or medicine. These jobs are usually long. Review articles can be narrative reviews or systematic reviews. Narrative reviews are longer and can range from 8,000 to 40,000 words. Systematic reviews are generally less than 10,000 words. These must be at least 60 citations for review articles, where at least 90% are referenced from the last 10 years. It is desirable that at least 50% of the citations be made to works published in English to demonstrate mastery of the subject in accordance with international trends. They should include a critical evaluation of the works cited, explanations of conflicts in the literature, and an analysis of the field. The conclusion should discuss in detail the limitations of current knowledge, future research directions, and the general importance of the topic in medicine or biology. The reviews contain four sections: (i) Summary, (ii) Introduction, (iii) Themes (with headings and subheadings), (iv) Conclusions and perspectives

Letters to the editor: A letter to the editor is a type of scientific publication that is classified as "short communication" and that allows readers to interact with the authors either through opinions, criticism, contributions, ideas, hypotheses, and new data. It is a type of short scientific publication that deals with a topic of interest to the readers of a journal. In addition, it offers feedback and encourages the exchange of knowledge and ideas. It also works as a discussion forum that allows post-publication critical review of scientific articles and is, at the same time, an additional quality control mechanism. They must have an extension between 250 to 500 words

Opinion articles, comments, and essays: These works are usually short. Opinion articles, comments, and essays have an extension between 1,000 and 2,000 words. These articles focus on criticizing works published by the journal.