Original Research

Original Research articles report on primary and unpublished studies. Original Research may also encompass confirming studies and disconfirming results which allow hypothesis elimination, reformulation and/or report on the non-reproducibility of previously published results. Original Research articles are peer-reviewed, have a maximum word count of 12,000 and may contain no more than 15 Figures/Tables. Authors are required to pay a fee (A-type article) to publish an Original Research article. Original Research articles should have the following format: 1) Abstract, 2) Introduction, 3) Materials and Methods, 4) Results, 5) Discussion.

Review

Review articles cover topics that have seen significant development or progress in recent years, with comprehensive depth and a balanced perspective. Reviews should present a complete overview of the state of the art (and should not merely summarize the literature), as well as discuss the following: 1) Different schools of thought or controversies, 2) Fundamental concepts, issues, and problems, 3) Current research gaps, 4) Potential developments in the field. Review articles are peer-reviewed, have a maximum word count of 12,000 and may contain no more than 15 Figures/Tables. Authors are required to pay a fee (A-type article) to publish a Review article. Review articles should have the following format: 1) Abstract, 2) Introduction, 3) Subsections relevant for the subject, 4) Discussion. Review articles must not include unpublished material (unpublished/original data, submitted manuscripts, or personal communications) and may be rejected in review or reclassified, at a significant delay, if found to include such content.

Mini Review

Mini Review articles cover focused aspects of a current area of investigation and its recent developments. They offer a succinct and clear summary of the topic, allowing readers to get up-to-date on new developments and/or emerging concepts, as well as discuss the following: 1) Different schools of thought or controversies, 2) Current research gaps, 3) Potential future developments in the field. Mini Reviews articles are peer-reviewed, have a maximum word count of 3,000 and may contain no more than 2 Figures/Tables. Authors are required to pay a fee (B-type article) to publish a Mini Review article. Mini Review articles should have the following format: 1) Abstract, 2) Introduction, 3) Subsections relevant for the subject, 4) Discussion. Mini Review articles must not include unpublished material (unpublished/original data, submitted manuscripts, or personal communications) and may be rejected or reclassified, at a significant delay, if found to include such content.

Perspective

Perspective articles present a viewpoint on a specific area of investigation. They should provide the following: 1) Discuss current advances and future directions, 2) Clear presentation of the authors’ perspective, 3) Accurate presentation and citations of other authors’ work, 4) May include original data as well as personal insights and opinions. Perspective articles are peer-reviewed, have a maximum word count of 3,000 and may contain no more than 2 Figures/Tables. Authors are required to pay a fee (B-type article) to publish a Perspective article. Perspective articles should have the following format: 1) Abstract, 2) Introduction, 3) Subsections relevant for the subject, 4) Discussion.

Case Report

Case Reports highlight unique cases of human or animal patients that present with an unexpected/ diagnosis, treatment outcome, or clinical course. Case Reports are peer-reviewed, have a maximum word count of 3,000 and may contain no more than 4 display items (figures, tables, or videos). Authors are required to pay a fee (B-type article) to publish a Case Report article. Authors should follow the CARE guidelines and submit a completed CARE checklist as a supplementary file (template available here: https://www.care-statement.org/checklist).

Case Reports should have the following format: 1) Abstract, 2) Introduction: including what is unique about the case and medical literature references, 3) Case description: including de-identified patient information, relevant physical examination and other clinical findings, relevant past interventions and their outcomes, 4) A figure or table showcasing a timeline with relevant data from the episode of care, 5) Diagnostic assessment, details on the therapeutic intervention, follow-up and outcomes, as specified in the CARE guidelines, 6) Discussion: strengths and limitations of the approach to the case, discussion of the relevant medical literature (similar and contrasting cases), take-away lessons from the case, 7) Patient perspective. Authors are required to obtain written informed consent from the patients (or their legal representatives) for the publication. Only Case Reports that are original and significantly advance the field will be considered. All Case Reports should carry the title “Case Report: ‘area of focus’”. More information on CARE guidelines here: https://www.care-statement.org/

General Commentary

General Commentary articles provide critical comments on a previous publication at Frontiers. Authors wishing to submit commentaries on articles published outside of Frontiers are encouraged to reformat and submit them as an Opinion type. General Commentary articles are peer-reviewed, have a maximum word count of 1,000 words and may contain no more than 1 Figure/Table. They should not contain unpublished or original data. General Commentary articles must be submitted for consideration to the same Journal and Specialty as the original article. Authors are required to pay a fee (C-type article) to publish a General Commentary article. General Commentary articles should have the following format: 1) Title: “Commentary: Title of the original article” (mandatory), 2) Introduction, 3) Subsections relevant for the subject, 4) Discussion. At the beginning of your General Commentary, please provide the complete citation of the article being commented on.

Correction

Corrigendum/Addendum: should authors notice errors that affect the scholarly record or the integrity of the paper, authors are encouraged to submit a correction online. The correction must detail the reason(s) for the error(s) and include only the elements (e.g. sections, sentence, figure) of the manuscript being revised or corrected. All authors of the original paper need to agree to the request for changes. The contribution to the field statement should be used to clearly state the reason for the Correction. Depending on the extent of the correction required, corrections may require peer review. Authors are informed that requests for changes beyond that described here may not be accepted for publication.

Erratum: should authors notice differences between their approved galley proofs and the final published article, thus leading to errors that affect the scholarly record or the integrity of the paper, authors are encouraged to submit a request for erratum to the Frontiers Production Office (production.office@frontiersin.org), clearly specifying the error and the correct information.

Editorial

Editorials are submitted exclusively by the host editor(s) of a Frontiers Research Topic, to convey to the reader the aims and objectives of the research that pertains to the topic, as well as placing it in a broader context. The Editorial should present the contributing articles of the Research Topic but should not be a mere table of contents. As the final contributing article to the Research Topic, Editorials should be submitted once all expected articles have been accepted and published. Editorials should not include unpublished or original data and the inclusion of references is strongly encouraged. Editorial articles may contain 1 Figure and have a word count of 1,000 for Topics with 5-10 articles. The word limit can be increased for each additional article in the Topic, up to a maximum of 5,000 words for 50 articles or more. Topic editors are not required to pay a fee to publish an Editorial article. Submissions are required to have the title Editorial: "Title of Research Topic".

Technology and Code

Technology & Code articles present new technology, code and/or software or a new application of a known technology or software. This article type aims to open new avenues for theoretical and experimental investigation, data analysis or data reduction within the field of study. Technology & Code articles can also feature studies that implement existing algorithms under novel settings. Technology & Code articles are peer-reviewed, have a maximum word count of 12,000 and may contain no more than 15 Figures/Tables. Authors are required to pay a fee (A-type article) to publish Technology & Code article. Technology & Code articles related to innovative software solutions and/or design should be novel, presented in a well-documented, human-readable format and should be placed online in a repository, with an associated DOI/URI for retrieval. To better support the code documentation, authors can also upload a metadata file in different formats (i.e. JSON-LD, Microdata, RDFa) that incorporates all the relevant information. Authors can refer to the schema.org vocabulary, and to the SoftwareApplication/SoftwareSourceCode and Dataset related specifications. Technology & Code articles should have the following format: 1) Abstract, 2) Introduction, 3) Method (including any code description), 4) Results (including examples of use and limitations), 5) Discussion (including scalability and limitations). The following information must also be included: project link (e.g. sourceforge, github), operating system (e.g. Windows, Linux, platform independent), programming language (e.g. Python), any restrictions for non-academic use (e.g. licence needed).