ShuYu Lim1, WanXin Lim2, Tikfu Gee2. 1. Department of General Surgery, University Putra Malaysia, Jalan Upm, 43400, Serdang, Selangor, Malaysia. 2705xy@gmail.com. 2. Department of General Surgery, University Putra Malaysia, Jalan Upm, 43400, Serdang, Selangor, Malaysia.