Funding for this research was provided by:
Japan Society for the Promotion of Science (17K11145)
Shin-Nihon Foundation of Advanced Medical Research
Text and Data Mining valid from 2019-03-13
Received: 10 October 2018
Accepted: 8 March 2019
First Online: 13 March 2019
Compliance with ethical standards
: The authors have no conflict of interest to declare.
: IRB approval from Kyushu University.