Okajima Kiyotaka, Otsuka Kuniaki, Oinuma Sachiko, Sasaki Junko, Yamanaka Takashi, Cornelissen Germaine
Chronomics and Gerontology, Tokyo Women's Medical University, Arakawa-ku, Tokyo, Japan.
J Am Geriatr Soc. 2014 Dec;62(12):2440-2. doi: 10.1111/jgs.13166.