- Address correspondence and reprint requests to Sang Min Park, MD, PhD, Department of Family Medicine, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehangno, Jongno-Gu, Seoul, 110-744, Republic of Korea. E-mail: .
- Received April 5, 2011
- Accepted July 20, 2011
- First published November 1, 2011.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.