How to format your references using the Gastrointestinal Endoscopy citation style

This is a short guide how to format citations and the bibliography in a manuscript for Gastrointestinal Endoscopy. For a complete guide how to prepare your manuscript refer to the journal's instructions to authors.

Using reference management software

Typically you don't format your citations and bibliography by hand. The easiest way is to use a reference manager:

PaperpileThe citation style is built in and you can choose it in Settings > Citation Style or Paperpile > Citation Style in Google Docs.
EndNoteDownload the output style file
Mendeley, Zotero, Papers, and othersThe style is either built in or you can download a CSL file that is supported by most references management programs.
BibTeXBibTeX syles are usually part of a LaTeX template. Check the instructions to authors if the publisher offers a LaTeX template for this journal.

Journal articles

Those examples are references to articles in scholarly journals and how they are supposed to appear in your bibliography.

Not all journals organize their published articles in volumes and issues, so these fields are optional. Some electronic journals do not provide a page range, but instead list an article identifier. In a case like this it's safe to use the article identifier instead of the page range.

A journal article with 1 author
Tate CG. Biochemistry. Membrane protein gymnastics. Science. 2010 Jun 25;328(5986):1644–5.
A journal article with 2 authors
Reddy GV, Meyerowitz EM. Stem-cell homeostasis and growth dynamics can be uncoupled in the Arabidopsis shoot apex. Science. 2005 Oct 28;310(5748):663–7.
A journal article with 3 authors
Tsubogo T, Oyamada H, Kobayashi S. Multistep continuous-flow synthesis of (R)- and (S)-rolipram using heterogeneous catalysts. Nature. 2015 Apr 16;520(7547):329–32.
A journal article with 7 or more authors
Hirayama J, Sahar S, Grimaldi B, Tamaru T, Takamatsu K, Nakahata Y, et al. CLOCK-mediated acetylation of BMAL1 controls circadian function. Nature. 2007 Dec 13;450(7172):1086–90.

Books and book chapters

Here are examples of references for authored and edited books as well as book chapters.

An authored book
Boeker E, Van Grondelle R. Environmental Physics. Chichester, UK: John Wiley & Sons, Ltd; 2011.
An edited book
Čechák T, Jenkovszky L, Karpenko I, editors. Nuclear Science and Safety in Europe. Dordrecht: Springer Netherlands; 2006. XIV, 276 p. (NATO Security through Science Series).
A chapter in an edited book
Clay SM, Fong SS. Systems Biology. In: Fong SS, editor. Developing Biofuel Bioprocesses Using Systems and Synthetic Biology. New York, NY: Springer; 2013. p. 21–36. (SpringerBriefs in Systems Biology).

Web sites

Sometimes references to web sites should appear directly in the text rather than in the bibliography. Refer to the Instructions to authors for Gastrointestinal Endoscopy.

Blog post
Luntz S. Bronze Age “World War Zero” Could Have Wiped Out A Mysterious Civilization. IFLScience. IFLScience; 2016.


This example shows the general structure used for government reports, technical reports, and scientific reports. If you can't locate the report number then it might be better to cite the report as a book. For reports it is usually not individual people that are credited as authors, but a governmental department or agency like "U. S. Food and Drug Administration" or "National Cancer Institute".

Government report
Government Accountability Office. Federal Software Licenses: Better Management Needed to Achieve Significant Savings Government-Wide. Washington, DC: U.S. Government Printing Office; 2014 May. Report No.: GAO-14-413.

Theses and dissertations

Theses including Ph.D. dissertations, Master's theses or Bachelor theses follow the basic format outlined below.

Doctoral dissertation
Brandom BM. Spiritual and emotional needs of young adults who are members of mainstream Protestant churches [Doctoral dissertation]. [Long Beach, CA]: California State University, Long Beach; 2009.

News paper articles

Unlike scholarly journals, news papers do not usually have a volume and issue number. Instead, the full date and page number is required for a correct reference.

New York Times article
Williams J. A Life in Art. New York Times. 2017 Jun 16;BR6.

In-text citations

References should be cited in the text by sequential numbers in superscript:

This sentence cites one reference 1.
This sentence cites two references 1,2.
This sentence cites four references 1–4.

About the journal

Full journal titleGastrointestinal Endoscopy
AbbreviationGastrointest. Endosc.
ISSN (print)0016-5107
ISSN (online)1097-6779
Radiology Nuclear Medicine and imaging

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