Hye Young Sung, Hyun Jung Jung, Jeong Seon Baeg, Hyun Young Woo, Kyu Re Joo, Kyung Mi Kang, Sang Hun Lee, Hye Suk Son, Suk Joon Shin, Ho Chul Song, Eui Jin Choi, Kwang Soo Lee, Joong Seok Kim
J Korean Geriatr Soc. 2006;10(4):322-325. Published online December 31, 2006