Lee Kee-Joon, Park Young-Chel, Hwang Woo-Sang, Seong Eui-Hyang
Department of Orthodontics, College of Dentistry and Oral Science Research Center, Institute of Craniofacial Deformity, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-752, Korea.
J Clin Orthod. 2007 Oct;41(10):627-35.