Acta Médica Portuguesa (AMP) (ISSN: 1646-0758) is the official scientific journal of the Portuguese Medical Association (Ordem dos Médicos) and has been published continuously since 1979. The journal focuses on high-quality original clinical, epidemiological, multicentre and basic-science research, as well as clinically relevant secondary research and guidelines, with the aim of increasing the international visibility of Portuguese medical research. AMP is a peer-reviewed journal and provides immediate open access to all published content. Articles are published under a Creative Commons Attribution–NonCommercial 4.0 International (CC BY-NC 4.0) license, allowing sharing and non-commercial reuse with appropriate attribution; authors may also deposit their published articles in institutional repositories in accordance with the license. The journal follows ICMJE recommendations and maintains editorial independence, with the Portuguese Medical Association, as owner of the journal, not interfering with manuscript evaluation, selection, scheduling or editing. Authors are responsible for obtaining permission to reproduce copyrighted material from other publications and must provide relevant copyright, conflict-of-interest and ethical declarations. AMP publishes monthly, with June and July combined into a single issue. The journal has been indexed in PubMed/MEDLINE since its first issue and has been included in the Web of Science Core Collection with a Journal Impact Factor since 2010. The journal's official policies also address confidentiality, research ethics, patient consent, data sharing, preprints, plagiarism, clinical trials, corrections, retractions and the use of artificial intelligence.