Horii, Chiaki
Asai, Yoshiki
Iidaka, Toshiko
Muraki, Shigeyuki
Oka, Hiroyuki
Tsutsui, Shunji
Hashizume, Hiroshi
Yamada, Hiroshi
Yoshida, Munehito
Kawaguchi, Hiroshi
Nakamura, Kozo
Akune, Toru
Oshima, Yasushi
Tanaka, Sakae
Yoshimura, Noriko
Article History
Received: 22 October 2019
Accepted: 29 April 2020
First Online: 18 May 2020
Compliance with ethical standards
: The study was approved by the ethics committees of the University of Tokyo (Nos. 1264 and 1326) and the Tokyo Metropolitan Institute of Gerontology (No. 5). Written informed consent was provided by all participants.
: None.