Ng, Deborah H. L.
Ho, Hanley J.
Chow, Angela
Wong, Joshua
Kyaw, Win Mar
Tan, Adriana
Chia, Po Ying
Choy, Chiaw Yee
Tan, Glorijoy
Yeo, Tsin Wen
Leo, Yee Sin
Article History
Received: 22 January 2018
Accepted: 26 June 2018
First Online: 4 July 2018
Ethics approval and consent to participate
: The study was approved by the Domain Specific Review Board of the National Healthcare Group, Singapore, under which the institution belonged (NHG DSRB Reference No: 2016/01027).
: Not applicable.
: Angela Chow is an Associate Editor for BMC Infectious Diseases. All other authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.