Akamizu Takashi, Iwakura Hiroshi, Ariyasu Hiroyuki, Murayama Toshinori, Sumi Eriko, Teramukai Satoshi, Goto Koji, Ohnishi Eijiro, Akiyama Haruhiko, Kawanabe Keiichi, Nankaku Manabu, Ichihashi Noriaki, Tsuboyama Tadao, Tamai Ken, Kataoka Masako, Nakamura Takashi, Kangawa Kenji
J Am Geriatr Soc. 2008 Dec;56(12):2363-5. doi: 10.1111/j.1532-5415.2008.02031.x.