The Journal contains the following sections:
Original articles. Original clinical, translational, or experimental research papers covering any aspect related to endocrinology, nutrition, diabetes, or metabolism. The recommended designs are analytical in the form of observational studies (cross-sectional, case-control studies, cohort studies) following the STROBE methodology and randomized controlled trials following the CONSORT methodology and registered in a public database.
The article should have a maximum length of 4000 words, not including references, abstract, and figure legends. It will be structured in the following sections: Introduction, Material and methods, Results, and Discussion. Subsections are only allowed in the Material and Methods and Results sections. The abstract (in Spanish and English) can have a maximum of 250 words and must be structured. The bibliography must be limited to a maximum of 30 references. A maximum of 6 tables and/or figures in total will be accepted. It will be included the main findings section, together with the abstract, no more than 80 words, divided into 4 or 5 sentences. Authors are also encouraged to provide a graphical abstract of the article.
Systematic reviews and meta-analyses. Systematic reviews using PRISMA or MOOSE criteria are recommended. It is recommended that the review protocol is registered in a public database and that the reference number is included in the publication.
The article should have a maximum length of 5000 words, excluding literature references, abstract and figure legends. It should be structured in the following sections: Introduction, Material and Methods, Results and Discussion. The abstract (in Spanish and English) can have a maximum of 250 words and must be structured. There is no limit to the number of literature references (provided they are justified). A maximum of 6 tables and/or figures in total will be accepted. If necessary, they can be complemented with supplementary tables/figures.
Another type of review: a case report. This is an update on a topic related to a clinical case. This type of manuscript can be commissioned or submitted on the authors' own initiative. They will have a maximum length of 2500 words, and an unstructured abstract of 150 words, the corresponding keywords, and up to 50 literature references. Up to 3 figures and/or tables will be accepted. It will be structured as follows: description of the case, management (and supporting evidence), areas of uncertainty, guidelines and conclusion and recommendations.
Scientific Letters. Descriptions may be included of one or more clinical cases of exceptional observation that represent a significant contribution to understanding the pathophysiology or other aspects of endocrine diseases. They may also report research experiences or results which, because of their characteristics, are not sufficiently important to be published as an original article. Maximum length of the text will be 1000 words, and it should not be structured in sections. It should not be accompanied by an abstract either. One figure or one table will be accepted. No more than 10 literature references should be included. There should be no more than five authors.
Letters to the Editor. Letters to the Editor may refer to studies published in the Journal or express opinions on a current issue. They may not exceed 1000 words and 1 Figure or 1 Table and a maximum of 10 literature references will be accepted. There should be no more than 4 authors.
Narrative Reviews/Special Articles. These will be commissioned by the Editorial Committee, or if the committee accepts proposals from interested authors. The article should have a maximum length of 5,000 words, excluding the bibliography, abstract, and figure legends. They must include an unstructured abstract of 150 words. There is no limit on bibliographic references, provided they are justified. A maximum of 6 tables and/or figures will be accepted in total. If necessary, these can be supplemented with additional online-only tables/figures.
Other sections. The journal includes Editorials commissioned by the Editorial Board. Authors who wish to contribute to any of these sections should contact the journal’s Editors beforehand. Endocrinología, Diabetes y Nutrición will also publish clinical guidelines and consensus documents on the diagnosis or treatment of diseases, provided they are promoted directly by the SED and SEEN or by working groups. These documents must be made according to the indications recommended by the SED and SEEN (http://www.seen.es/) and follow the AGREE methodology for clinical guidelines.
The guidelines prepared jointly with other scientific societies may be published in Endocrinology, Diabetes and Nutrition, and in parallel in the publications of the other scientific societies, provided that the regulations established by the SED-SEEN and the AGREE methodology have been followed. In this case, the correspondence author will attach a cover letter stating the Societies that endorse the Document (attaching the endorsement of each Society), as well as the journals to which the consensus will be sent.
The journal will publish the guideline or the consensus document accepted by the Editorial Committee as an Executive Summary, whose maximum length will be 3000 words, and an unstructured abstract that will have a maximum of 150 words. It will be accompanied by tables and figures that are considered convenient to help interpret the information in a clear and concise manner and it will be sent in English. The title will begin with the following sentence: "Executive summary of the guideline/consensus document...". The full consensus document will be published online as additional material to the Executive Summary and/or as a supplement to the journal. The objective of the publication of the Executive Summary is to offer readers a synthesis of the consensus document, but with enough detail and clarity to understand the full document's scope and most relevant points. A maximum of 6 executive summaries per year will be published in the first issue of each year, with priority being given to those produced jointly by the two societies. Papers must be submitted to the board(s) of the corresponding society(ies) by 30 June for evaluation and selection.
The definition of authorship will be guided by the recommendations of the International Committee of Medical Journals editors (ICMJE, https://www.icmje.org/recommendations/browse/roles-and-responsibilities/defining-the-role-of-authors-and-contributors.html).