You Jin Hwang, Soon Pyo Lee, Suk Young Kim, Young Hwan Choi, Min Ji Kim, Choong Ho Lee, Joo Young Lee, Dae Young Kim

Yonsei Med J.2009;50(3):399-406.   Published online 2009 June 23     DOI: http://dx.doi.org/10.3349/ymj.2009.50.3.399