by Alan R
References
American Academy of Family Physicians website. Available at:
http://www.aafp.org/online/en/home.html
.
American College of Rheumatology website. Available at:
http://www.rheumatology.org/
.
National Institute of Arthritis and Musculoskeletal and Skin Diseases website. Available at:
http://www.niams.nih.gov/
.
The Merck Manual of Medical Information.
17th ed. Simon and Schuster, Inc.; 2000.