1. Internal Medicine, Rheumatology, Arthritis Associates PLLC, Hixson, TN, USA;
2. Mountain State Clinical Research, Clarksburg, WV, USA;
3. Einstein Medical Center, Philadelphia, PA, USA;
4. University of Florence, Florence, Italy;
5. Janssen Research & Development LLC, Spring House, PA, USA;
6. Janssen Scientific Affairs, Horsham, PA, USA;
7. Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA, USA