ǰ Ļ縦 ؾ ǰϰ ⸦ ִٴ Դ. б 1946 3 ¾ 1000 ߴ.
, ǰ ϰ ä, ø ǰ ǰ Դ Ľ ǰ Ľ 60 ʹ ü ɰ õ 3 Ʈ ξ Ҵ.
α ǰ Ľ ڿ Ͼ ӵ ϴ ð, Ͼ ɾ ӵ ϴ 3 Ʈ 2 ξ ȹߴ.
þ κ "Ļ Ű ɴ뿡 ǰ ȿ ģ" "Ư α⸦ ġ ԴĿ ü° ü ɷ¿ ū ִ Ÿ" ߴ.
̷ ϴб ǷῬ "Ľ ̷ ȭ õ , ȿ ִ " ߴ.
̹ ' ν : ø A(The Journals of Gerontology: Series A)' Ƿȴ.