1. 1 University of California, David Geffen School of Medicine, Los Angeles, CA, USA
2. 2 Biopharmaceutical Consultant, Portola Valley, CA, USA
3. 3 University of Maryland School of Medicine, Baltimore, MD, USA
4. 4 Hospital for Special Surgery, New York, NY, USA
5. 5 University of Vermont College of Medicine, Burlington, VT, USA
6. 6 UT Southwestern Medical Center, Dallas, TX, USA
7. 7 Altoona Arthritis and Osteoporosis Center, Duncansville, PA, USA
8. 8 Premier Research, Austin, TX, USA
9. 9 Iroko Pharmaceuticals, LLC, Philadelphia, PA, USA