title: Japan's longevity challenge.
authors.affiliation: Hiroko Akiyama is a professor at the Institute of Gerontology at the University of Tokyo, 7-3-1 Hongo, Bunkyoku, Tokyo, Japan. akiyama@iog.u-tokyo.ac.jp.
authors.forename: Hiroko
authors.initials: H
authors.lastname: Akiyama
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D007564:Japan; D008136:Longevity; D012179:Retirement; D012943:Social Security