Soon Ho Um, Yong Dae Kwon, Chang Duck Kim, Hong Sik Lee, Yoon Tae Jeen, Hoon Jai Chun, Sang Woo Lee, Jae Hyun Choi, Ho Sang Ryu, Jin Hai Hyun

J Korean Med Sci.2003;18(4):520-526.   Published online 2009 April 22     DOI: http://dx.doi.org/10.3346/jkms.2003.18.4.520