Ling, Hwei Sung http://orcid.org/0000-0001-7634-6591
Chung, Bui Khiong
Chua, Pin Fen
Gan, Kai Xin
Ho, Wai Leng
Ong, Elora Yoke Ling
Kueh, Cindy Hui San
Chin, Yie Ping
Fong, Alan Yean Yip
Article History
Received: 26 September 2019
Accepted: 23 November 2020
First Online: 7 December 2020
Ethics approval and consent to participate
: This study obtained ethical clearance from Malaysian Ethical Review Committee and was registered in National Medical Research Register (NMRR-17-2314-37795). The investigation conforms with the principles outlined in the Declaration of Helsinki [CitationRef removed]. All participants provided informed consent in written form to participate in the study.
: Not applicable.
: The authors reported no affiliations in any organization or entity with any financial interest such as honoraria, or on-financial interest such as personal or professional relationships in the subject matter or materials discussed in this manuscript.