**Author details**

Koh Z.L. Sharon1 , H. Yamamoto2 and Tsang B.S. Charles3

1 Division of Colorectal Surgery, National University Healthcare System, Singapore

2 Department of Medicine, Head of Division of Gastroenterology & Therapeutic Endoscopy, Jichi Medical University, Togichi, Japan

3 Colorectal Clinic Associates, Mt Elizabeth Novena Specialist Centre Singapore, National University of Singapore Yong Loo Lin School of Medicine, Singapore
