Conflict of interest
Dr Li KZ has no conflict of interest to declare. Dr Tan CS receives research funding from the National Medical Research Council Transition Award (NMRC/TA/0039/2015) and the National Healthcare Group (Singapore) Clinician Scientist Career Scheme Grant (CSCS/12005). Dr. Tan also receives travel support from Bayer (South-East Asia) Pte Ltd, Heidelberg Engineering (Heidelberg, Germany), and Novartis (Singapore).
Research involving human participants and/or animals
This article does not contain any studies with human participants or animals performed by any of the authors.