Funding for this research was provided by:
90th Anniversary of Chulalongkorn University Ratchadapiseksompotch Endowment Fund (GCUGR1125614023M)
Text and Data Mining valid from 2020-04-10
Received: 13 June 2019
Accepted: 30 March 2020
First Online: 10 April 2020
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of the Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand (IRB No.028/61). All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.