Joon Cho, Chang Taek Moon, Hyun Seung Kang, Woo Jin Choe, Sang Keun Chang, Young Cho Koh, Hong Gee Roh

J Korean Med Sci.2008;23(4):747-751.   Published online 2008 August 25     DOI: http://dx.doi.org/10.3346/jkms.2008.23.4.747