Funding for this research was provided by:
Japan Agency for Medical Research and Development (18gm6010001h0003, 18ek0410041h0002)
Japan Society for the Promotion of Science (JSPS) KAKENHI (15H05911)
Text and Data Mining valid from 2019-08-05
Received: 28 March 2019
Accepted: 22 July 2019
First Online: 5 August 2019
Ethics approval and consent to participate
: This study was approved by the ethical committee of Osaka University Graduate School of Medicine. All participants were of Japanese origin and provided written informed consent that was approved by the ethical committee of each hospital.
: Not applicable.
: The authors declare that they have no competing interests.