Instructions for Authors

About the editorial processes of the Brazilian Journal of Oncology

All manuscripts submitted to the journal will be analyzed by two or three reviewers, and authorship confidentiality and reviewer identity will be guaranteed throughout the editorial process. Copies of the reviewers' opinions will be sent to the authors. Accepted manuscripts and those accepted with modifications needed will be sent to the authors to make the changes or justify them; in such cases, the authors should resend the text, with the requested modifications, highlighted in a different color from the text; and justify, in the letter of reference, if applicable, the reason for not following the suggestions. Should the manuscript not be returned after 60 days, we assume the authors are no longer interested in the publication. If the authors respond after this deadline, we shall consider it a new submission, and the manuscript will be submitted to a new analysis. The authors shall be responsible for the concepts and statements contained in the papers.

The material submitted for analysis must not have been simultaneously submitted for publication in other journals, nor have been published previously, except for presentations at conferences.

For publication approval, we will assess originality, relevance of the theme, ethical aspects and quality of the methodology used, and the adequacy vis-a-vis the editorial standards of the journal.

The published material becomes the property of the Brazilian Journal of Oncology (ISSN 1806-6054), and may only be reproduced, in whole or in part, with the permission of the entities that publish the journal.

The journal will be an open access publication and papers should be submitted electronically at:

The journal publishes papers in the following categories:

Original papers: complete prospective, experimental or retrospective manuscripts, containing original clinical and/or experimental research results. The text should contain the sections: Introduction, Objectives, Methods, Results, Discussion and Conclusions. The maximum number of references should not exceed 50. The number of authors is limited to 20.

Case Reports: cases of great interest and well documented, from a clinical, surgical or laboratorial point of view. The text should contain the following sections: Introduction, Case description, Discussion and References. The number of references should not exceed 15 references; the number of authors is limited to 6.

Review papers: including critical literature review, systematic reviews and meta-analyses. The selection of the themes and the invitation to the authors are based on the planning established by the publishing house. Spontaneous papers may be accepted. In this case, a summary or script of the text and the list of authors should be sent initially. Should the journal be interested, the author will be invited to send the whole paper. In the case of a non-systematic review, the first author and/or the corresponding author must have publications on journals on the subject of the review. The number of authors is limited to six, depending on the type of text and the methodology used. The methods and procedures adopted to obtain the literature should be described, based on recent references, including the current year. In the case of a matter still subject to controversy, the review should discuss all the trends and lines of investigation under way. Discuss, in addition to the review text, summary, abstract and conclusions. See the "Manuscript preparation" section for information on the main text, cover page, summary and abstract.

Editorial Comments: opinion articles written by specialists, or comments concerning papers published in the journal, will be made at the publisher's invitation; however, unsolicited ones will be routinely evaluated for publication. They should be accompanied by references, not exceeding 15.

Letters to the Editor, dealing with editorial matters or not, but presenting relevant information to the reader. These letters may be summarized by the editor, but maintaining the main points. Letters reviewing published papers will be sent to the authors so that their reply can be published simultaneously.


Conflicts of interest: financial issues that may influence the development or the conclusions of the study, the author and/or the spouse should be mentioned. Among these situations, we list: interest in companies producing the drugs or of the equipment cited or used in the study, as well as competitors therein, fees for talks and consulting. Also considered as sources of conflict are the aids received and subordination relationships concerning the study. If there is no financial conflict of interest, the author should declare so.

Research Ethics Committee: the text should mention the submission and approval of the study by a Research Ethics Committee, as well as the submission and approval number in the Plataforma Brasil when relevant to the study.

Free and Informed Consent: Articles that deal with clinical research with humans should include a statement that the participants and/or their caregivers signed the informed consent form.

Clinical Trials: All randomized controlled trials and clinical trials submitted for publication should be recorded in a clinical trials database. This is a guideline from the International Platform for Clinical Trials (ICTRP) of the World Health Organization (WHO), and the International Committee of Medical Journal Editors (ICMJE). Registration instructions are available on the ICMJE website ( and it can be registered in the National Library of Medicine clinical trials database, available at

The journal does not accept editorial material for commercial purposes.


The number of authors of full papers is twenty, and case reports are limited to six. Papers authored by one or more institutions must have those responsible and their institutions specified. Multicentric studies may have number of authors matching the number of centers, with a maximum of 20. All authors should approve the final version to be published.

 The concept of co-authorship is based on the contribution of each one concerning the study design and planning, analysis and interpretation of the data, for the writing and/or critical revision of the text. The inclusion of names whose contribution does not meet the above criteria or that have provided only material support is not justifiable and should only be included in Acknowledgments.

Authors will be informed, by electronic correspondence, of the receipt of papers and the protocol number in the journal. Papers that are in accordance with the Instructions to Authors and fit the editorial policy of the journal will be submitted for review by reviewers appointed by the publisher. Originals not in accordance with the journal's objectives or with these instructions will be returned to the authors for the necessary adaptations prior to evaluation by the Editorial Board or rejected without review by reviewers.

Along with the original papers, a cover letter should be sent, which justifies the importance and relevance of the submitted manuscript and states agreement with the editorial norms, the review process and the transfer of copyrights to the journal.

All manuscripts must be submitted in English.

Preparation of Manuscripts

The following standards were based on the format proposed by the ICMJE and were published in the article Uniform requirements for manuscripts submitted to biomedical journals, available at

Presentation of the text:

  1. All sections should have double space between lines, including cover page to bibliographical references, tables and legends. Each page should contain about 25 rows in a single column. Use preferably Microsoft Word processor and the Times New Roman 12 font. Do not highlight text fragments: do not underline or use bold. Number all pages, starting with the front page.

  2. Proper names should not be written in capitals (other than the first letter) either in the text or in bibliographical references. Do not use dots in the acronyms (use DPP instead of D.P.P.). When using acronyms or abbreviations, be sure they are fully described when first mentioned. Each section should be started on a new page: title, abstract and keywords; text; acknowledgement; references; individual tables and image captions.

Submitting work

The magazine uses GNPapers for online submission. This process is divided in steps as described below:

  1. Selection of the category: Original Article, Case Report, etc.

  2. Inclusion of title and keywords in English;

  3. Registration of authors’ institutional affiliation (not to indicate functions performed in the institution) and their full names (without abbreviations), as well as their respective valid electronic addresses and one or more contribution for each author;

  4. Inclusion of abstract and information on aids received in the form of scholarships, funding and supply of material, such as drugs, reagents or equipment. Information on any conflict of interest in the respective fields should also be included. In case the work has a registered clinical trial number, there is one specific field to be filled out.

  5. The full work should be sent in one single document in Microsoft Word format (extension .doc or .docx), without the names of the authors and their affiliations, in order not to compromise the evaluation of the work.

  6. Submission of image files and any other supplementary documents.

  7. Work review and acceptance of the submission terms before finishing submission for the evaluation.

Front page

Presentation of the title of the work in English, as well as the abstract and keywords.


The abstract should appear on the second page. The abstract of original works should be structured in sections such as Objective, Methods, Results and Conclusion. It should be approximately 300 words long.

The abstract should provide a general idea of the work, with only relevant information. A brief description of the methods used and the statistical analysis performed should be included. The most relevant numerical results have to be presented, not just an indication of statistical significance. The conclusions should be based on the results of the work and not on the literature. Avoid using abbreviations and symbols. Bibliographic references should not be cited in the abstract.

On the same page of the abstract, cite at least five words or key expressions. They will be used for indexing in national and international databases. These words should be based on the Medical Subject Headings (MeSH) of the National Library of Medicine and are available at

Still on the same page, below the abstract, there should be an indication of the registration number and/or identification for the randomized controlled trials and clinical trials.

In Case Reports, Reviews and Update Articles, the abstract should not be structured and should be limited to 150 words. In systematic reviews, the abstract should follow the same pattern as the original articles.


This section should present the current situation about the topic under study, as well as disagreements and gaps that may possibly justify the development of the work. This should all be done without extensive literature review.

Case Reports should present a summary of the cases already published, epidemiology of the reported condition and a justification for the presentation as an isolated case. The objectives of the work have to be clearly presented.


Start this section by indicating the planning of the work: if retrospective or prospective; if experimental or clinical trial; if the distribution of cases was random or not. Describe the criteria for selection of patients or experimental group, including controls. Identify the equipment and reagents used (manufacturer, city and country). If the methodology has been used before, the references have to be indicated in addition to the brief description of the method. The statistical methods applied should also be mentioned, as well as the comparisons for which each test was applied.

Papers that aim to investigate the effectiveness or tolerability of treatments or drugs should necessarily include an adequate control group. For additional information on how such works should be structured, see ICH Harmonized Tripartite Guideline - Choice of Control Group and Related Issues in ClinicalTrials (


The text, the tables and the figures should present the results in logical sequence. State the results relevant to the purpose of the work and which are discussed. Do not present all the data of the tables and figures, but describe and emphasize the most relevant, without interpreting them (see Tables). In Case Reports, the Methods and Results sections are replaced by a Case Description and the other sections remain.


The original and the new information obtained in the study should be emphasized. Do not repeat information that was mentioned in the "Introduction" and "Results" sections. Avoid citing tables and figures. Highlight the applicability of the research methods. The authors should compare and relate their observations to those of other authors, commenting and explaining the differences. The implications of the findings, as well as their limitations should be explained in this section, accompanied by recommendations.

For Case Reports, base the discussion on a broad and updated literature review. Information on already published cases can be tabulated and displayed in this section for comparisons.


The acknowledgments have to be directed to people who have collaborated intellectually for the work, although the contribution does not justify co-authoring, and also or for those who have provided material or other kind of support for the development of the paper.


All authors and works mentioned in the text should be included in this section and vice versa (it should only cite authors that appear in the text). References should be numbered in order of entry in the text. The most relevant references for each contextualization should be cited, giving preference to the most recent works.

The titles are in two languages should be preferentially quoted in the original language of the consulted article. The title cited in English should be in brackets and should contain, at the end of the reference, the information of the language in which the article is written.

If citing articles not yet published, but accepted for publication, the reference should be accompanied by the expression: "accepted and awaiting publication", indicating periodical, volume and year. Studies that were accepted by online journals, with no indication of fascicles and pages, should be cited as "ahead of print".

Other authors' publications (self-citation) should be used only if there is a real need and relation to the topic. If this is the case, only original papers released in regular periodicals should be included among the references.

The authors are responsible for the accuracy of the data contained in the bibliographic references.

In all references, cite the authors until the sixth name. If there are more than six authors, cite the first six, followed by the expression et al., According to the following models:

Examples of references

Magazine articles

Mohty M, Malard F, Abecassis M, Aerts E, Alaskar AS, AljurfM, et al. Revised diagnosis and severity criteria for sinusoidal obstruction syndrome/veno-occlusive disease in adult patients: a new classification from the European Society for Blood and Marrow Transplantation. Bone Marrow Transplant. 2016;51(7):906-12.
Wang YF, Jiang YM, Gao J, Zhou P, Zhang G. [Prognostic value of bone marrow hematogones in childhood B-lineage acute lymphoblastic leukemia]. Zhongguo Dang Dai ErKeZaZhi. 2016;18(4):292-6. Chinese.


Baggish MS, Karram MM. Atlas of pelvic anatomy and gynecologic surgery. 2nd ed. Philadelphia: WB Saunders; 2006.

Book chapters

Aigner KR, Stephens FO.Basics of oncology. Berlin: Springer; 2009. Signs of cancer: local and general.p.55-8. 5

Monograph or e-books

Foley KM, Gelband H, editors. Improving palliative care for cancer [Internet]. Washington: National Academy Press; 2001 [cited 2002 Jul 9]. Available at:

Presentation Of The Tables

The tables should be presented on separate pages, with double spacing and preferably Arial font 8. Numbering should be sequential, in Arabic numerals, in the order they were cited in the text. All tables must have a title and all columns of the table must be identified with a heading. The information of the caption should allow the reader to understand the contents of the tables and figures even without reading the text of the paper. Horizontal lines should be simple and limited to two at the top and one at the end of the table. Do not use vertical lines. Do not use table creation functions, justification commands, decimal or centralized tabs. Use tab commands rather than spacing to separate the columns and the enter key for a new row. At the bottom of the table, caption should be included for abbreviations and statistical tests used.

Figures (Graphics and illustrations)

Figures should be presented in separate pages and numbered sequentially, in Arabic numerals, according to the order they are found in the text. All figures must have proper graphic quality and be accompanied by caption and title. To avoid problems that could compromise the standards of the journal, the scanning process must follow these parameters: for graphics or layouts use 300 dpi/bitmap for dash; for illustrations and photos (black and white) use 300 dpi/RGB or grayscale. In all cases (graphics, drawings, and layouts), files must have the extensions .tif, .png, and/or .jpg. For other documents, files with a .pdf extension are also accepted. A maximum of five figures are accepted. If the figures have been published before, the written authorization of the author/publisher and the source should be included in the caption.


The captions accompanying the respective figures (graphics, photographs and illustrations) should be typed with double space and numbered in Arabic numerals, corresponding to each figure and according to the order they appear in the paper.

Abbreviations and Acronyms

When cited for the first time, they should be preceded by the full name. In the captions of the tables and figures, they must be accompanied by their name in full. Abbreviations and acronyms should not be used in the title of the articles nor in the abstract.

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