- Correspondence to Professor Won Park, IN-HA University, School of Medicine, Medicine/Rheumatology, 366 Seohae-daero, Jung-Gu, Incheon 22332, Korea;
- Received March 14, 2016
- Revised August 5, 2016
- Accepted August 9, 2016
- First published September 13, 2016.
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