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Gastroenterology and Hepatology

Ethical standards

Gastroenterology and Hepatology is a scientific peer-reviewed journal, which is subject to an independent review process. The principles of ethical behaviour of all those involved in the publishing process are therefore very important.
Authors who send an article for publication (or enter an article in the Open Journal System (OJS) state that it concerns the results of original and previously unpublished work and that the work has not been submitted for publication in another journal or medium. Furthermore, the authors acknowledge that it is their own work, which was not copied or plagiarised, either partially or in its entirety; they also confirm that all the specific or potential conflicts of interest or benefits related to their work have been stated.

• Misleading or knowingly inaccurate claims constitute unethical behaviour and are unacceptable.
• Authors are fully responsible for ensuring that their written contributions are entirely original; if other work and/or statements have been used, these must be correctly cited.
• As a general principle, manuscripts describing the same research problem shall not be submitted for publication in more than one periodical or publication. Simultaneously submitting the same manuscript for publication in more than one journal represents unethical behaviour and is unacceptable.
• Publication of an abstract or posters is not considered to be a duplicate publication, but this should be stated in the cover letter accompanying the submitted manuscript.
• Only those workers who have significantly contributed to the conception, layout, design and interpretation of the results of the studies presented are identified as the authors. Everyone who also contributed significantly to processing the communication are identified as co-authors, this fact is confirmed when entering the article into the OJS.
• In the manuscript every author announces every financial conflict of interest that could lead to a valid assumption that it influences the results or their interpretation in the manuscript. A complete list of sources of financing the project will also be given.
• If an author discovers a significant error or inaccuracy in their work, it is their duty to immediately notify the editor or publisher of the journal and work with them to correct it or withdraw it from publication.

Patient confidentiality
Patients are entitled to respect for their confidentiality, which may not be breached without herein informed consent. Identifying information may not be included in: the written text, photographs, or genealogies. Unless this information is essential from a scientific point of view and unless the patient (or his parent or guardian) has given informed consent to the publication of this information. In this event, the patient must be given access to the manuscript. The provision by the patient of their informed consent must be indicated in the printed article.

Standard Protocol Approvals, Registrations, and Patient Consents
Humans: In reporting experiments on humans, the authors must indicate in the cover letter and a specific subsection in the Patients and Methods that the procedures were approved by an ethical standards committee on human experimentation (institutional or regional). This disclosure must include the name of ethical committee, date, and approval number. Authors must comply with the guidelines of the International Committee of Medical Journal Editors regarding the requirements for patient consent for research or participation in a study. The study should not include the participants' names, initials, or hospital identification numbers anywhere in the manuscript (including figures). If there was a waiver from your institution’s ethical approval board, please note the waiver in this section and provide documentation to the editorial office that the waiver was granted.
In addition to the standard patient consent for participation in research, authors are responsible for obtaining patient consent-to-disclose forms. This is required for all recognizable participants in photographs, videos, or any identifiable information that may be published in the Gastroenterology and Hepatology Journal or on the Journal’s website. The patient consent-to-disclose form should indicate specific use (publication in medical literature, both in print and online, with the understanding that the participants and the public will have access) of the participant’s information and any images in figures or videos and must contain the participant’s signature (or that of a legal guardian). Authors must email a copy of the patient consent-to-disclose form, when the manuscript is submitted. The original should be retained by the guarantor or the Corresponding Author.
Animals: Authors must comply with the guidelines of the International Committee of Medical Journal Editors regarding experiments on animals. Authors must indicate, in the cover letter and the Materials and Methods section, that the procedures comply with the institutional and national guide for the care and use of laboratory animals.


Ethical principles

  • The entire study was conducted in accordance with the Helsinki Declaration of 1975 (as revised in 2004, 2008 and 2013).
  • The study protocol was approved by the Local Ethics Committee XY (date, and approval number).
  • All subjects have provided written informed consent prior to their participation in the study.


  • The study is not subject to approval by the ethics committee; patients have signed an agreement consenting with the diagnostic and treatment process.

Registration of Clinical Trials
The journal of Gastroenterology and Hepatology recommends that investigators register their clinical trials in a public trials registry.  Upon doing so investigators should provide proof of registration as well as the clinical trial identification number. The National Library of Medicine provides a free registry that meets the International Committee of Medical Journal Editors (ICMJE) requirements. Investigators are required to register at (or prior to) the time of patient enrollment. Authors must provide the clinical trial identification number in the Materials and Methods section of the submitted article.

Study registration

  • The study was registered prior to enrolling the first patient at: (Identifier: NCT number).

See Conflict of Interest and Publication Ethics

The editorial board’s OBLIGATIONS

• The editorial board and editor in chief are responsible for deciding which of the submitted articles will be published.
• Papers submitted for publication are sent to two reviewers via OJS. They are given a blind peer review - the authors don’t know the names of the reviewers and vice versa.
• The accountable editor, editorial board members and staff members cannot pass on any information in the submitted manuscripts to third parties (other than the corresponding author, reviewers and potential reviewers, the publisher and any of the editor’s potential advisors).

• If any reviewer concludes that it is impossible for them to carry out a review of the manuscript by the agreed time, they must inform the editor of this so that the manuscript can be sent for to another reviewer for examination.
• Information about the manuscripts submitted is considered confidential and must be treated thus.
• Reviews should be conducted objectively. Any personal criticism of the author is unacceptable. Reviewers should clearly express their opinion and support it with specific arguments.
• If the reviewer finds significant similarity or overlap between the submitted manuscript and any other published work known to the reviewer, they are obliged to immediately inform the editor of this.
• Reviewers may not assess manuscripts for which a conflict of interest may arise for them.

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