Funding for this research was provided by:
Japan Society for the Promotion of Science (24406022)
Japan Agency for Medical Research and Development (J-GRID)
Received: 30 January 2019
Accepted: 18 June 2019
First Online: 27 June 2019
Ethics approval and consent to participate
: Ethical approval was obtained from the Ethical Clearance Committee on Human Rights Related to Research Involving Human Subjects Faculty of Medicine Ramathibodi Hospital, Mahidol University and the Ethics Committee of Osaka University Graduate School of Medicine. Protocol numbers were ID02–56-09 and 14002, respectively. Because this study was performed as part of routine clinical work, informed consent was omitted as both Institutional Review Boards approved. Instead, patients were informed of the research procedure and wavering rights via a poster in the hospital.
: All the patients were informed of the research procedure and wavering rights via a poster in the hospital (opt-out).
: The authors declare that they have no competing interests.