Funding for this research was provided by:
Faculty of Medicine, Chulalongkorn University (Ratchadapiseksompotch Fund (RA62/039), Ratchadaphiseksomphot Endowment Fund (RA-MF-3/63))
Chulalongkorn University (The 100th Anniversary Chulalongkorn University Fund for Doctoral Scholarship, The 90th Anniversary Chulalongkorn University Fund. (Ratchadaphiseksomphot Endowment Fund))
Received: 10 November 2020
Accepted: 14 December 2020
First Online: 5 January 2021
Ethics approval and consent to participate
: The study was conducted in accordance with the international guidelines for human research protection as Declaration of Helsinki, The Belmont Report, CIOMS Guideline and International Conference on Harmonization in Good Clinical Practice (ICH-GCP) and was approved by the Institutional Review Board of the Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand (IRB No. 431/61). Patients were enrolled after written informed consent was obtained from the patients or their legal representatives.
: Not applicable
: The authors declare that they have no competing interests.