In Joon Choi, Hyeon Joo Jeong, Dae Suk Han, Jae Seung Lee, Kyu Hun Choi, Shin Wook Kang, Sung Kyu Ha, Ho Yung Lee, Pyung Kil Kim

Yonsei Med J.2001;42(2):247-254.   Published online 2009 April 3     DOI: http://dx.doi.org/10.3349/ymj.2001.42.2.247