Zhang, Lei
Kumar, Kirthika Senthil http://orcid.org/0000-0002-6412-5879
He, Hao
Cai, Catherine Jiayi
He, Xu
Gao, Huxin
Yue, Shizhong
Li, Changsheng
Seet, Raymond Chee-Seong
Ren, Hongliang http://orcid.org/0000-0002-6488-1551
Ouyang, Jianyong
Article History
Received: 10 March 2020
Accepted: 18 August 2020
First Online: 17 September 2020
Competing interests
: The authors declare no competing interests.
: We have complied with all relevant ethical regulations. This work has been obtained informed consent from all participants. The study protocol is approved by the NUS Institutional Review Board (IRB) (NUS-IRB REFERENCE CODE: S-20-019).