Lenke Bálint, Andrea Tiszai, Orsolya Inczefi, Georgina Ollé, Krisztina Helle, Richárd Róka, András Rosztóczy, Division of Gastroenterology, First Department of Medicine, University of Szeged, Szeged 6720, Hungary
Gábor Kozák, Department of Physiology, University of Szeged, Szeged 6720, Hungary
Ilona Dóczi, Department of Clinical Microbiology, University of Szeged, Szeged 6725, Hungary
Veronika Szekeres, Hungarian National Blood Transfusion Service, Szeged 6722, Hungary
Author contributions: Bálint L, Rosztóczy A designed research, performed research, and wrote the paper; Tiszai A performed research; Kozák G designed research and analyzed data; Dóczi I contributed analytic tools; Szekeres V performed research; Inczefi O performed research; Ollé G performed research; Helle K performed research; Róka R performed research.
Institutional review board statement: The study was approved by the institutional review board of University of Szeged.
Informed consent statement: The institutional review board of University of Szeged waived the requirement to obtain informed consents from patients.
Conflict-of-interest statement: The authors have no conflict of interest to disclose.
Data sharing statement: No additional data are available.
STROBE statement: This study adopted the guidelines of the STROBE Statement.
Open-Access: This is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Corresponding author: András Rosztóczy, MD, PhD, Associate Professor, Division of Gastroenterology, First Department of Medicine, University of Szeged, Korányi fasor 8-10, Szeged 6720, Hungary. firstname.lastname@example.org
Telephone: +36-62-545186 Fax: +36-62-545185
Received: September 2, 2019
Peer-review started: September 2, 2019
First decision: September 19, 2019
Revised: October 10, 2019
Accepted: October 18, 2019
Article in press: October 18, 2019
Published online: November 14, 2019