Saka, Natsumi
Nomura, Kyoko
Amano, Hoichi
Fujimoto, Kenichi
Watanabe, Yoshinobu
Kawano, Hirotaka
Tanihara, Shinichi
Funding for this research was provided by:
Ministry of Health, Labor, and Welfare of Japan (H27-Statistics-Ippan-001, H29-Statistics-Ippan-003)
Article History
Received: 14 August 2019
Accepted: 6 November 2019
First Online: 2 December 2019
Compliance with ethical standards
:
: The authors declare no conflict of interest.