Funding for this research was provided by:
the Ministry of Health, Labour and Welfare of Japan (20141508A, 25-2-3)
Japan Society for the Promotion of Science (16K09486, 20K07907, 18K07895)
Japan Agency for Medical Research and Development (21ek0109486, 21ek0109549, 21ek0109493)
Received: 11 October 2021
Accepted: 29 November 2021
First Online: 6 December 2021
: The study protocol was approved by the Institutional Review Board at Osaka City General Hospital (No. 170850) and the study was performed under written informed consent from the patients or the guardians when appropriate. All methods were carried out in accordance with relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.