Kim, Young-Do; Kim, Joong-Seok; Chung, Sung-Woo; Song, In-Uk; Yang, Dong-Won; Hong, Yun-Jung; Kim, Yeong-In; Ahn, Kook-Jin; Kim, Hee-Tae; Lee, Kwang-Soo
ArticleIssue Date2011CitationARCHIVES OF GERONTOLOGY AND GERIATRICS, v.53, no.2, pp.E222 - E226PublisherELSEVIER IRELAND LTD