Received: 1 August 2017
Accepted: 18 December 2017
First Online: 22 January 2018
Ethics approval and consent to participate
: Ethical approval was obtained from the respective hospital’s ethics committees. Ethical approval was approved by the Centralized Institutional Review Board in Singapore, UMMC Medical Ethics Committee in Malaysia, Ethics Committee of Bandung Adventist Hospital in Indonesia, and Ethics Committee of Asian Hospital and Medical Center in Philippines. Informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.
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