Zu Young Yun, Dong Wook Lee, Hee Su Jung, Ki Hm Park, Sin Hyeong Lee, Jung Jae Park, Dong Ik Kim, Jae Man Ki, Kyung Rae Cho, Joon Seok Song, Seok Choi, Cheang Ho U, Tae Ho Jung, Sook Heong Jung, Sung Woo Kim, Ik Kim
Korean J Fam Med. 2009;30(3):197-201. Published online March 20, 2009