Kyung Hee-Moon, Park Hyo-Sang, Bae Seong-Min, Sung Jae-Hyun, Kim Il-Bong
Department of Orthodonitcs, School of Dentistry, Kyungpook National University, 101, 2-Ga, Dong-In Dong, Jung-Gu, Taegu 700-424, Korea.
J Clin Orthod. 2003 Jun;37(6):321-8; quiz 314.