Kotani Kazuhiko, Adachi Seiji, Tsuzaki Kokoro, Sakane Naoki
Division of Preventive Medicine, Clinical Research Institute for Endocrine and Metabolic Disease, National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan.
Age Ageing. 2009 Jan;38(1):123-6. doi: 10.1093/ageing/afn234. Epub 2008 Nov 11.