Funding for this research was provided by:
Alice Lim Grant (Alice Lim Grant (Singapore))
Text and Data Mining valid from 2019-07-29
Accepted: 21 July 2019
First Online: 29 July 2019
Compliance with ethical standards
: The authors have no conflict of interest to declare.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the National University of Singapore Institutional Review Board and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.