- Correspondence to Professor TJ Kim, Department of Rheumatology, Medical School and Hospital, Chonnam National University, 42 Jebong-ro, Dong-gu, Gwangju, Republic of Korea;
- Received July 5, 2016
- Revised November 28, 2016
- Accepted December 3, 2016
- First published December 30, 2016.
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