by Sharon Wolfson Miguel Saps a Division of Pediatric Gastroenterology, Hepatology and Nutrition, Children’s Hospital of Philadelphia, Philadelphia, PA, USAb Division of Pediatric Gastroenterology,Hepatology and Nutrition, University of Miami, Miami, FL, USA

by Xiaohan Zhang Xiuli Zhang Yunsheng Yang a Medical School, Nankai University, Tianjin, Chinab Microbiota Division, Department of Gastroenterology and Hepatology, The First Medical Center, Chinese PLA General Hospital, Beijing, China

by Jayanta Samanta Abhirup Chatterjee Jahnvi Dhar Zaheer Nabi Michiel Bronswijk Manik Aggarwal Antonio Facciorusso Paraskevas Gkolfakis Takeshi Ogura Schalk Van der Merwe Sundeep Lakhtakia a Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Chandigarh, Indiab Department of Gastroenterology, Adesh Medical College and Hospital, Kurukshetra, Haryana, Indiac Department of Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, Indiad Department of Gastroenterology and Hepatology, University Hospitals Leuven and Imelda General Hospital, Bonheiden, Belgiume Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USAf Department Medical and Surgical Sciences, University of Foggia, Foggia, Italyg Department of Gastroenterology, “Konstantopoulio-Patision” General Hospital of Nea Ionia, Athens, Greeceh Endoscopy Center, Osaka Medical College, Osaka Medical and Pharmaceutical University Hospital, Osaka, Japani Department of Gastroenterology and Hepatology, University Hospitals Leuven, Leuven, Belgium

by Vasileios Lekakis Aikaterini Gkoufa John Vlachogiannakos George V. Papatheodoridis Evangelos Cholongitas a Department of Gastroenterology, Medical School of National and Kapodistrian University of Athens, General Hospital of Athens “Laiko”, Athens, Greeceb First Department of Internal Medicine, “Laiko”, General Hospital, Medical School of National and Kapodistrian University of Athens, Athens, Greece

by Masaya Iwamuro Takehiro Tanaka Daisuke Ennishi Motoyuki Otsuka a Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japanb Department of Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japanc Department of Hematology and Oncology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan

by Michael B. Andrews Douglas G. Adler a Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USAb Center for Advanced Therapeutic Endoscopy (CATE), Porter Adventist Hospital/PEAK Gastroenterology, Denver, CO, USA

by Tengyue Hu Chang Hai Liu Yurong Zheng Jialin Ji Yantong Zheng Si-Ke He Dongbo Wu Wei Jiang Qingmin Zeng Nannan Zhang Hong Tang a Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, Chinab Laboratory of Infectious and Liver Diseases, Institution of Infectious Diseases, West China Hospital of Sichuan University, Chengdu, Chinac West China School of Public Health, Sichuan University, Chengdu, Chinad West China School of Medicine, Sichuan University, Chengdu, Chinae National Center for Birth Defect Monitoring, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Chengdu, China

by Lampros Chrysavgis Evangelos Cholongitas a First Department of Internal Medicine, Athens Naval Hospital, Athens, Greeceb First Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, Athens Greece

by Carlo Maria Rossi Giovanni Santacroce Marco Vincenzo Lenti Antonio di Sabatino a Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italyb First Department of Internal Medicine, San Matteo Hospital Foundation, Pavia, Italy

by Wei Li Li Wan Jiangyan Zhang Department of Pharmacy, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Hubei, Wuhan, China