Received: 13 August 2018
Accepted: 31 October 2019
First Online: 14 November 2019
Ethics approval and consent to participate
: The Siriraj Institutional Review Board (SIRB), Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand approved this study (COA no. Si 185/2013). Written informed consent was obtained from all participants.
: Not applicable.
: Both authors declare no personal or professional conflicts of interest, and no financial support from the companies that produce and/or distribute the drugs, devices, or materials described in this report.