Choo Yon Cho, Sang Hwa Lee, Sung Ho Hong, Dae Hyun Kim, Joo Sung Park, Young Woo Ahn, Jang Won Won, Seung Pil Jung, Hang Suk Cho, Gyu Dong Choi, Mi Jung Kim, Hae Jung Kim, Hong Soo Lee, Chul Yonng Bae
Korean J Fam Med. 2001;22(9):1383-1393. Published online September 1, 2001