Kwon Jae-Cheol, Park Yoonseon, Han Zee-A, Song Je Eun, Park Hye Sun
Department of Internal Medicine, National Health Insurance Corporation Ilsan Hospital, Goyang, Korea.
Korean J Intern Med. 2013 Jan;28(1):121. doi: 10.3904/kjim.2013.28.1.121. Epub 2012 Dec 28.