Department of Medical Gastroenterology, Christian Medical College, Vellore, 632 004, India

Ebby George Simon & John Titus George

Department of Medical Gastroenterology, Apollo Hospitals, Chennai, 600 006, India

Ubal Dhus & Amara Sadguna Rao

Department of Medical Gastroenterology, Madurai Medical College, Madurai, 625 020, India

Kannan M. & Kondala Rao Yedupati

Institute of Medical Gastroenterology, Madras Medical College, Chennai, 600 003, India

Premkumar K. & Anupama Swarna

GI and Liver Unit, Kovai Medical Center and Hospital, Coimbatore, 641 014, India

Aravindh Somasundaram & Arulraj Ramakrishnan

Department of Gastroenterology, PSG Institute of Medical Sciences and Research, Coimbatore, 641 004, India

Venkatakrishnan L. & Dhanush Thomas

Department of Medical Gastroenterology, Coimbatore Medical College, Coimbatore, 641 018, India

Arulselvan V. & Arshiya Mubin S.P.

Department of Medical Gastroenterology, Stanley Medical College, Chennai, 600 001, India

Revathy M.S. & Rakesh Jha

Department of Surgical Gastroenterology, Stanley Medical College, Chennai, 600 001, India

Jeswanth S. & Satish Devakumar

Department of Gastroenterology, Meenakshi Mission Hospital and Research Centre, Madurai, 625 107, India

Alagammai PL. & Sujata V. Gade

Department of General, GI and Minimal Access Surgery, St. Isabel’s Hospital, Chennai, 600 004, India

Kanagavel Manickavasagam & Deepak Agarwal

Department of Medical Gastroenterology, VGM Hospital, Coimbatore, 641 005, India

Mohan Prasad V.G. & Madhura Prasad

Department of Medical Gastroenterology, Gleneagles Global Health City, Chennai, 600 100, India

Mahadevan B. & Dinu Abirami

Department of Medical Gastroenterology, MedIndia Hospitals, Chennai, 600 034, India

Chandrasekar T.S. & Gokul B.J.

Department of Medical Gastroenterology, Sri Gokulam Hospital, Salem, 636 004, India

Rajesh Natrayan & Harshini Manonmani Sampathkumar

Department of Medical Gastroenterology, SRM Institutes for Medical Science, Chennai, 600 083, India

Ramakrishna B.S. & Naveen Chand

Department of Gastroenterology, Annai Arul Hospital, Chennai, 600 063, India

Joseph Jensingh Babu S. & Sindhu Ashokan

Department of Gastroenterology and Hepatology, MGM Healthcare, Chennai, 560 070, India

Arulprakash S. & Karishma Srinivasan

Department of Digestive Health and Diseases, Govt. Kilpauk Medical College, Chennai, 600 010, India

Aravind A. & Lavanya N.

Department of Medical Gastroenterology, Madras Medical Mission, Chennai, 600 037, India

Arun R.S. & Asher Edward Prem Kumar

Department of Surgical Gastroenterology, SRM Medical College Hospital and Research Centre, Chennai, 603 211, India

Rathnaswami A.

Department of Medical Gastroenterology, SRM Medical College Hospital and Research Centre, Chennai, 603 211, India

Rajesh N.A.

Department of Medical Gastroenterology, Velammal Medical College Hospital and Research Institute, Madurai, 625 009, India

Arun A.C. & Ganga Balaji

Department of Medical Gastroenterology, Meenakshi Medical College Hospital and Research Institute, Kancheepuram, 631 552, India

Padmanabhan P. & Somnath Verma

Department of Hepatology, Gleneagles Global Health City, Chennai, 600 100, India

Jayanthi V.

EGS: Study conception and design, data collection, data analysis, preparation of manuscript, overall coordination. JV: Study conception and design, critical revision of the manuscript for important intellectual content. UD, PK, VL, JS, RBS: Study design, data collection, critical revision of the manuscript for important intellectual content. Rest of the authors: data collection and critical revision of the manuscript for important intellectual content. All authors approve the final submitted version of the manuscript and are accountable for all aspects of the work.