Text and Data Mining valid from 2019-11-19
Received: 21 May 2019
Accepted: 4 November 2019
First Online: 19 November 2019
Ethics approval and consent to participate
: The protocol for this study was approved by the Institutional Review Board of the Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand with the provisions of the Good Clinical Practice Guidelines and the Declaration of Helsinki. All patients provided written informed consent prior to participation.
: Not applicable.
: The authors declare that they have no competing interests.