1. University of Alabama at Birmingham
2. Amgen Inc. Thousand Oaks California
3. Maastricht University Maastricht The Netherlands
4. McMaster University Hamilton Ontario Canada
5. Cosme Argerich Hospital Buenos Aires Argentina
6. Hospital Aranda de la Parra León Mexico
7. Emkey Arthritis & Osteoporosis Clinic Wyomissing Pennsylvania
8. VU University Medical Center Amsterdam The Netherlands