Ong, Chong Yau https://orcid.org/0000-0002-6230-7134
Low, Sher Guan
Vasanwala, Farhad Fakhrudin
Fook-Chong, Stephanie, MC
Kaushik, Manish
Low, Lian Leng
Article History
Received: 17 September 2017
Accepted: 28 February 2018
First Online: 7 March 2018
Ethics approval and consent to participate
: The ethics approval was obtained from SingHealth Centralised Institutional Research Board (CIRB Ref: 2016/2780). The need for consent was formally waived by the ethics committee in CIRB.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.