Ryu Yang Gi, Chung Cheol Hyun, Choo Suk Jung, Kim Yun Seok, Song Jae Kwan
Department of Thoracic and Cardiovascular Surgery, ASAN Medical Center, University of Ulsan, College of Medicine, Seoul, South Korea.
J Thorac Cardiovasc Surg. 2009 Feb;137(2):500-2. doi: 10.1016/j.jtcvs.2008.01.028. Epub 2008 Jun 6.