Chen, Yizhao
Teo, Hui Ling
Liu, Hong
Loh, Tze Ping
Liu, Qinde http://orcid.org/0000-0003-0769-4642
Teo, Tang Lin
Lee, Tong Kooi
Sethi, Sunil Kumar
Article History
Received: 16 April 2019
Revised: 27 August 2019
Accepted: 12 September 2019
First Online: 19 October 2019
Compliance with ethical standards
:
: The use of leftover patient serum samples in this study has been approved by the National Healthcare Group Domain Specific Review Board (reference no. DSRB 2016/01201) and complied with the Declaration of Helsinki.
: The authors declare that there is no conflict of interest.