American Academy of Orthopaedic Surgeons (AAOS) 6300 North River Road Rosemont, IL 60018-4262 Phone: 847-823-7186 Toll-Free: 1-800-346-2267 Fax: 847-823-8125 http://orthoinfo.aaos.org/
American College of Rheumatology 1800 Century Place Suite 250 Atlanta, GA 30345-4300 Phone: 404-633-3777 Fax: 404-633-1870 http://www.rheumatology.org/
Arthritis Foundation P.O. Box 7669 Atlanta, GA 30357-0669 Phone: 404-872-7100 Toll-Free: 1-800-283-7800 http://www.arthritis.org/
National Institute of Arthritis and Musculoskeletal and Skin Diseases Information Clearinghouse National Insitutes of Health 1 AMS Circle Bethesda, MD 20892-3675 Phone: 301-495-4484 Toll-Free: 1-877-226-4267 Fax: 301-718-6366 TTY: 301-565-2966 Email: niamsinfo@mail.nih.govhttp://www.niams.nih.gov/
Source: EverydayHealth.com
