Authors: Nicholas Chew; Jimmy Kim Fatt Hon; Wei Luen James Yip; Siew Pang Chan; Kian-Keong Poh; William Kok-Fai Kong; Kristine Leok Kheng Teoh; Tiong Cheng Yeo; Huay Cheem Tan; Edgar Lik Wui Tay Journal: Singapore Med J Date: 2016-08-12 Impact factor: 1.858