- Correspondence to Dr Ho Yun Lee, Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50, Ilwon-Dong, Kangnam-Ku, Seoul 135-710, Korea;
- Received December 6, 2013
- Revised March 17, 2014
- Accepted March 30, 2014
- First published April 16, 2014.
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