Palittiya Sintusek, Suttiruk Jitraruch, Yong Poovorawan, Voranush Chongsrisawat, Division of Gastroenterology and Hepatology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
Nawarat Posuwan, Yong Poovorawan, Center of Excellence in Clinical Virology, Chulalongkorn University, Bangkok10330, Thailand
Piyaporn Wanawongsawad, Excellence Center of Organ Transplantation, King Chulalongkorn Memorial Hospital, Bangkok 10330, Thailand
Author contributions: Sintusek P, Poovorawan Y and Chongsrisawat V contributed to study conception and design; Sintusek P and Wanawongsawad P contributed to data acquisition; Sintusek P and Posuwan N were responsible for data analysis and interpretation; Sintusek P wrote the article; Sintusek P, Jitraruch S, Poovorawan Y and Chongsrisawat V contributed to editing, reviewing and final approval of the article.
Supported by the Development of New Faculty Staff, Ratchadaphiseksomphot Endowment Fund to Sintusek P; The Special Task Force for Activating Research in Immune Response in Children with Chronic Liver Diseases and Children after Liver Transplantation, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand to Sintusek P; the Research Chair Grant from the National Science and Technology Development Agency, No. P-15-50004 to Poovorawan Y; and The Center of Excellence in Clinical Virology, Chulalongkorn Unversity and King Chulalongkorn Memorial Hospital, No. GCE 5900930-005 to Poovorawan Y.
Institutional review board statement: The study was reviewed and approved by the Ethics Committee, Faculty of Medicine, Chulalongkorn University (IRB number 614/60).
Informed consent statement: All study participants, or their legal guardian, provided verbal consent prior to study enrolment.
Conflict-of-interest statement: None of the authors has any potential conflict to declare.
Data sharing statement: Technical appendix, statistical code, and dataset available from the corresponding author at email@example.com. Consent was not obtained but the presented data are anonymized and the risk of identification is low.
Open-Access: This article is an open-access article which 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/
Correspondence to: Voranush Chongsrisawat, MD, Associated Professor, Chief, Division of Gastroenterology and Hepatology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Pathumwan, Bangkok 10330, Thailand. firstname.lastname@example.org
Telephone: +66-2-2564951 Fax: +66-2-2564911
Received: December 5, 2017
Peer-review started: December 6, 2017
First decision: December 21, 2017
Revised: January 5, 2018
Accepted: January 20, 2018
Article in press: January 20, 2018
Published online: February 14, 2018