Funding for this research was provided by:
Japan Agency for Medical Research and Development (JP16ek0610004)
Text and Data Mining valid from 2020-03-10
Received: 5 September 2019
Accepted: 28 February 2020
First Online: 10 March 2020
Ethics approval and consent to participate
: Ethics committees at Osaka University Hospital, Kobe University Hospital, Kawasaki Medical School Hospital, National Center of Neurology and Psychiatry Hospital, and Jikei University Hospital evaluated the protocols (approval numbers 15429–2; 280046; 2275–2; A2016–092; and 28–256, respectively). All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.