title: In reply.
authors: Emergency Medicine Department, National University Hospital, National University Health System, Singapore; Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Centre for Quantitative Medicine, Duke-NUS Graduate Medicine School, Singapore.
authors: Win Sen
authors: WS
authors: Kuan
authors: Emergency Medicine Department, National University Hospital, National University Health System, Singapore; Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
authors: Irwani
authors: I
authors: Ibrahim
authors: Emergency Medicine Department, National University Hospital, National University Health System, Singapore; Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
authors: Benjamin S H
authors: BS
authors: Leong
authors: Emergency Medicine Department, National University Hospital, National University Health System, Singapore; Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
authors: Malcolm
authors: M
authors: Mahadevan
authors: Centre for Quantitative Medicine, Duke-NUS Graduate Medicine School, Singapore.
authors: Swati
authors: S
authors: Jain