Kyung Won Park, Hyun Sook Kim, Jae Woo Kim, Soo Young Kim, Eung Gyu Kim, Tae You Kim, Sang Min Sung, Taehong Sohn, Bong Goo, Soo Jin Yoon, Sung Min Yoon, Sang Chan Lee, Mun Seong Choi, Tae Yong Hong
J Korean Geriatr Soc. 2007;11(3):111-116. Published online September 30, 2007