Young Jin Joo, Seung Min Choi, Kwang Won Ryu, Jae Hyun Cho, Woo Seob Eom, Jeon Soo Ryu, Do Kyun Kim, Young Jin Kim, Sang Hyun Kim, Bum Gon Yeo, Su Yeon Rhie, Sang Woon Park, Jae Joong Baik, Sin Bae Joo, Young Duck Jeon, Hong Soon Lee
J Korean Geriatr Soc. 2002;6(4):347-353. Published online December 31, 2002