Chang Won Won, Keum Yeol Yang, Yong Gyun Rho, Soo Young Kim, Eun Ju Lee, Jong Lull Yoon, Kyung Hwan Cho, Ho Cheol Shin, Bi Ryong Cho, Jeong Ryul Oh, Do Kyung Yoon, Hong Soon Lee, Young Soo Lee
J Korean Geriatr Soc. 2002;6(2):107-120. Published online June 30, 2002
Byeong Cheol Song, Jae Won Choi, Won Beom Choi, Kwang Hee Yoon, Yeon Ho Joo, Kwang Ro Joo, Hwoon Yong Jung, Suk Kyun Yang, Hae Ryun Kim, Young Soo Lee, Weon Seon Hong, Young Il Min
J Korean Geriatr Soc. 1997;1(2):35-42. Published online December 31, 1997