Funding for this research was provided by:
Received: 28 June 2020
Accepted: 16 December 2020
First Online: 6 January 2021
Ethics approval and consent to participate
: This study was approved by the research ethics committee of the Faculty of Medicine, Chiang Mai University. All patients provided written informed consent to participate in the study.
: Consent for publication is not applicable.
: All the authors declare that they have no competing interests.