- Correspondence to Professor Young Ho Lee, Division of Rheumatology, Korea University Medical Cente, 126-1, Anma-Dong 5-Ga, Sungbuk-Ku, Seoul, 136-705, Republic of Korea;
- Received 31 October 2017
- Accepted 1 November 2017
- Published online 10 November 2017.
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.