ISSN printed version
 1609-722X

ISSN electronic version
1022-5129

INSTRUCTIONS TO THE AUTHORS

1. PRESENTATION

The Revista de Gastroenterología del Perú is the official publica-tion of the Sociedad de Gastroenterología del Perú that pub-lishes original articles, review articles, case reports, letters and general information on the specialty; It is aimed at health profes-sionals with a special interest in gastroenterology. It is indexed in MEDLINE/Index Medicus, SciELO, Lilacs and other international databases.

The Revista de Gastroenterología del Perú publishes articles in Spanish and English, full text in the printed and electronic ver-sion. Scientific articles are submitted to national and international reviewers or referees, specialists who give their opinion under the double-blind modality and anonymously on their quality and validity. The number of reviewers depends on the type of article (two reviewers minimum for original articles, and one minimum for other articles).

These instructions are in accordance with the recommendations published by the International Committee of Medical Journal Edi-tors (available in English at: https://www.icmje.org/icmje-recom-mendations.pdf and in Spanish at https://www.icmje.org/recom-mendations/translations/spanish2021.pdf)

Legal Deposit in the National Library of Peru: 98-1175
ISSN Printed version: 1022-5129
ISSN Electronic version: 1609-722X

The electronic version is available in full text at:https://revistagastroperu.com/index.php/rgp

All subscriptions and address changes should be sent to:Sociedad de Gastroenterología del Perú

Juan de Aliaga 204, Magdalena del Mar
Lima 15076, Peru.
Telephone: (+511) 2640015
Email: revistagastro2011@gmail.com

Article submission

All articles addressed to the Magazine must be sent through its web platform. The members of the Editorial Board are not respon-sible for the opinions expressed by the authors who contribute material to the Journal. All articles submitted to the Revista de Gastroenterología del Perú must attach the Affidavit of Authorship attached as Annex 1 of these instructions, or request the version in editable format by email revistagastro2011@gmail.com

Contributions may belong to any of the following sections:

• Editorial (at the request of the Editorial Committee)

• Original articles
• Review articles (at the request of the Editorial Committee)
• Case report
• Special articles (at the request of the Editorial Committee)
• Letters to the editor

2. GENERAL CONSIDERATIONS

2.1 First page

Must include:

• Title in English and Spanish (preferably, with a maximum of 20 words).
• Short title (less than 10 words).
• List of authors, with the following information for each one:
-Name and surname or surnames (as you wish to appear in the journal and database).
-Affiliation (maximum 2: one institutional and one academic). They are the institutions where the author/authors are/are working or studying, and that have contributed in some way to the genesis of the research. The term “independent author” is accepted for those who do not have active affiliations.
-Profession, specialty and academic degree (the highest obtained).
-Current email.-ORCID number (mandatory for each author).

• Authorship contributions: Indicate the contribution of each author in conducting the research on the manuscript.
• Sources of financing.
• Conflicts of interest: You must declare any condition, circumstance or personal or work relationship that could potentially reduce objectivity in the interpretation of the research; This can be economic or institutional.
• Acknowledgments: In case they correspond; you must specify the reason for the thanks.
• Corresponding author, address, telephone number and email: Every manuscript must provide one (in exceptional cases, two corresponding authors), with whom the journal will have communication regarding the editorial process.

The list of authors, the order that their names will follow, and the institutional affiliations are the strict responsibility of the authors (in general, the first author is the one who worked the most and wrote the first draft of the manuscript, and the last one is usually the researcher). senior).

The academic degree of the people or the profession are not de-cisive in the authorship of a manuscript, only the contribution in its development. The acquisition of funds, the collection of data, or the general supervision of the research do not justify author-ship by themselves. They should be listed in the acknowledgments section.

Authors must submit the form in which they wish their name to appear in the RGP and in the databases. As the databases are in English, they usually consider only a surname. Here are some ways to present your name and how it will appear in databases:
Name sent to the RGP How it will appear in the databases:

2.2 Summary/Abstract and keywords

All articles, except for the Editorial and the Letters to the Editor, must have a summary in Spanish and English (abstract). In addi-tion, you must include the keywords in Spanish, using the Descrip-tors in Health Sciences and MeSH for keywords in English, with a minimum of five and a maximum of eight words.

2.3 Bibliographic references

Those cited in the text will be included, as follows:

• If it is only one citation [1] or if it includes more than one [5-8], they must be arranged correlatively, according to the order of appearance and between brackets.
• The Vancouver format will be used.
• If there are more than 6 (six) authors, the first two will be listed, followed by et al.
• The reference may contain a hyperlink (web link) directed to the Internet site where the reference can be accessed, provided that this access has been recently verified.
• All citations must include the DOI number, when applicable.

Examples:

Magazine article

Nagaraja V, Eslick GD, Cox MR. Systematic review and metaanalysis of minimally invasive techniques for the management of cholecys-to-choledocholithiasis. J Hepatobiliary Pancreat Sci. 2014; 21 (12): 896-901. DOI: 10.1002/jhbp.152
Guillén O, Casas J. Morbilidad ambulatoria y hospitalaria en el Perú: Cambios entre los años 2011 y 2015 [Internet]. Rev Med Hered. 2019; 30 (3): 215-218. [cited Feb 15, 2022] Available in: https://revistas.upch.edu.pe/index.php/RMH/article/view/3597 DOI: 10.20453/rmh.v30i3.3597

Books

American Psychiatric Association. Reference Guide to the Diag-nostic Criteria of the DSM-5(r): Spanish Edition of the Desk Refer-ence to the Diagnostic Criteria from DSM-5(r). Arlington, VA. 2013.

Chapters of books

Reed JG, Baxter PM. Library use: Handbook for Psychology. 3rd ed. Washington: American Psychological Association; 2003. Chapter 2, Selecting and defining the topic; p. 11-25.

Thesis

Weisbaum LD. Human sexuality of children and adolescents: a comprehensive training guide for social work professionals [Mas-ter’s thesis]. Long Beach (CA): California State University, Long Beach; 2005. 101 p.

Web page

AMA: Helping doctors help patients [Internet]. Chicago: American Medical Association; c1995-2007 [cited 22 Feb, 2007]. Available at: http://www.ama-assn.org/

2.4 Tables

They must be presented after the bibliographical references, each one on a different page, ordered in Arabic numbers (Table 1, Table 2, etc.) and contain the necessary information to be able to be interpreted without the need to refer to the text. Only one hori-zontal line will be accepted, to separate the header from the body of the table; vertical lines should not be included.
The tables must be in Word or Excel, and never as an image file (.jpg, .png, etc.), as they need to be modifiable for layout. Explain at the bottom of the tables the meaning of the abbreviations and symbols used.

2.5 Figures

They can be included as figures:
• Statistical graphs
• Flow charts and diagrams
• Photographs
• Maps or schemes

The figures must be numbered consecutively and be included af-ter the tables. Statistical graphs and flowcharts can be presented in Excel format or in another statistical package. Other images must be presented as independent files in .TIF, .PNG or .JPG formats at a resolution greater than 600 dpi or 300 pixels and attached as separate files (not included in Word) for later editing and layout.

The photomicrographs should indicate the magnification and the staining method.

Maps should indicate scale.

In the figures where the faces of the patients are shown, a dark strip should be placed that covers the eyes, to prevent their identi-fication; Otherwise, the authors must attach written authorization from the patient or her legal representative, giving their consent for the publication of photos that allow the identification of the patient. If a previously published figure is included, the source must be indicated, and the written permission of the copyright holder must be submitted.

3. STYLE RECOMMENDATIONS

• The RGP uses the International System of Units.
• The scientific names of the species must be placed in italics.
• In Spanish we use a decimal comma and in English a decimal point.
• The titles of the articles must not have abbreviations. If these are used in the text, the full name of what is referred to must be entered in the first mention and then the abbreviation between parentheses.
• A single decimal place (10.1%) is recommended for percentages.
• For populations under 50, the use of percentages is not recommended, but rather fractions (20/50).
• For measures of association such as OR and its confidence intervals, two decimal places are recommended (OR: 2.15; 95% CI: 1.10-3.41).
• For p values, up to a maximum of three decimal places (p=0.009) is recommended.
• Italics will only be admitted if Anglicisms or common Latinisms are used, or scientific names of living beings; proper nouns do not require them.

4. SUBMISSION OF MANUSCRIPTS

All manuscripts submitted to the RGP must be written in Span-ish or English and must not have been previously published in whole or in part, or simultaneously sent to other journals, in any language.

The manuscript must be submitted in Word format, in A4 size, 2.5 cm margin, 11 points, Arial, Times New Roman or Calibri font, single spaced. Annexes 1 (Affidavit of Authorship) and 2 (Checklist) of this document must be attached.
 

5. SECTIONS

5.1 Editorial

The articles in this section, when they are not written by the Editor, are presented only at the request of the Editorial Committee. Its content will refer to a topic of interest about the medical profes-sion, the national or world health situation, gastroenterology, and the management or editorial policy of the RGP. They should not exceed 1500 words, excluding bibliographical references.

5.2 Original articles

They are the product of unpublished scientific research, linked to a topic of interest to the RGP. Priority will be given to studies with prospective and analytical designs, with a sample size appropri-ate to the research question. They must not contain more than 5000 words (abstract, body of the article, bibliography, tables and figures included). The title must not exceed 130 characters (spaces excluded) and the abstract must not exceed 250 words.

They must contain:

• Abstract: Objectives, materials and methods, results and conclusions. In English and Spanish.
• Keywords: No less than five and no more than eight, in English and Spanish. These words can be easily located on the website https://decs2020.bvsalud.org/E/homepagee.htm of PAHO/WHO and the Latin American and Caribbean Center on Health Sciences Information (BIREME).
• Introduction: Concise (maximum 20% of the total length of the article), it must include relevant background information, the research question, and the objectives.
• Materials (subjects) and methods: Methodology used, to allow the reproduction of the study and to evaluate the quality of the information. The use of subtitles including the following information is recommended:
• Study design: Type of study, date and place where it was carried out, describing the relevant aspects that allow the reader to understand the conditions in which it was carried out.
• Study population: Description, selection criteria, calculation of sample size or power as appropriate, sample design and enrollment.
• Study variables: Relevant dependent and independent, so that the validity of the method used can be evaluated, with the citations and cut-off points used.
• Procedures: Description that allows its subsequent replication. Identify the drugs and chemical compounds used, with their generic name, dose and route of administration.
• Ethical aspects: Approval by ethics committees, permits obtained, prior, free and informed consent, data confidentiality, return of results, data protection.
• Data analysis: data treatment, quality control of the databases, statistical programs, p value used as significant, tests used for the crossing of variables, fulfillment of assumptions and development of models for multiple variables.
• Results: Presented clearly, without opinions or interpretations (except for purely statistical ones).
• Discussion: Presents the main results, compares them with other similar studies, exposes the differences or similarities, and explains the reason for them. It presents the limitations and biases and postulates the reasons why they would not invalidate the findings. Details clinical, research or public health implications and recommendations.
• Conclusions: Summarizes what was stated in the discussion, based on the results obtained and responding to the objectives of the investigation.

5.3 Review articles

They are presented at the request of the Editorial Committee. The word limit is 5000, excluding the abstract, the bibliography, tables and figures. They are narratives or systematic reviews that do not reach meta-analysis, with the following structure:

• Unstructured Summary/Abstract (150 words maximum).
• Keywords.
• Introduction.
• Content (structured as the authors deem appropriate).
• Discussion (and conclusion).
• Bibliographic references.
 

5.4 Case report

This type of manuscript may present one or more cases of a rare disease, an unusual form of a common disease, little-known ad-verse events, rare associations of diseases, new cases in the Peru-vian case mix, new interventions or new uses of drugs, with a clear message or lesson for the gastroenterology community. They will only be accepted if they make a notable contribution to the etiol-ogy, pathogenesis, or treatment of a specific disorder. The maxi-mum extension of a clinical case will be of 3000 words including the abstract and the bibliography, which should not have more than 15 references. They have the following structure:

• Unstructured Summary/Abstract.

• Key words/Keywords.

• Introduction (describes the known aspects of the case).

• Case report (describes the new or unusual aspects of the case).

• Discussion (highlighting the contribution or teaching of the case).

• Bibliographic references.

Information that could allow the patient to be identified should not be included. If it is unavoidable to include photographs show-ing the patient’s face, the explicit authorization of the patient or their legal representative must be obtained. The figures and pho-tographs must be of high quality and presented in a .JPG, .PNG or .TIF file, at a resolution greater than 600 dpi or 300 pixels, sepa-rately (not included in the Word file).

5.5 Special ítems

They are presented at the request of the Editorial Committee. They can be essays, opinions, guides, systematizations, research proto-cols or experiences of interest for clinical practice, public health or the professional practice of gastroenterology. The word limit for special articles is 3,000, excluding the abstract, the bibliography, tables and figures. They have the following structure:

• Unstructured Summary/Abstract (150 words maximum).

• Key words/Keywords.

• Introduction.

• Content (structured as the authors deem appropriate).

• Discussion (and conclusion).

• Bibliographic references.

5.6 Letters to the editor

They can have two forms:

• Scientific letter: In general, they are descriptive investigations, with small non-probabilistic samples, but with results obtained systematically. They may include a series of cases or case reports, with a specific result of interest, or that requires rapid publication. It has a maximum length of 1000 (thousand) words and is presented without a summary/abstract. You can respond or not to an article previously published in the RGP.

• Comment letter: With a maximum length of 500 words, 5 references, 1 figure or table and up to 3 authors, this type of letter must be in response to an article published in the latest issue of the RGP. They may also be well-founded opinions on issues related to editorial policy, clinical practice, public health or professional practice of gastroenterology, or complaints related to ethical misconduct in the publication of an article in the RGP. The authors have the right to reply in the same or subsequent number of the RGP; in exceptional cases, there may be a replication.

6. Payments for reception or publication

The Revista de Gastroenterología del Perú (RGP) does not request or accept payments for Article Processing Charges (APC). This in-cludes the reception, preliminary review by the Editorial Commit-tee, review by external referees, style correction, layout, publica-tion, DOI assignment and article marking.