- Correspondence to Professor Hyo Sung Kwak, Radiology and Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital, 634-18, Keumam-Dong, Jeonju-shi, Jeonbuk 561-712, South Korea;
- Received December 31, 2014
- Revised February 25, 2015
- Accepted March 15, 2015
- First published April 3, 2015.
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