http://www.ninds.nih.gov/disorders/polymyositis/polymyositis.htm
National Institute of Neurological Disorders and Stroke, National Institutes of Health
A general overview of polymyositis that includes a description of the disorder, and treatment, prognosis and research information. Suggested reading for more in-depth information and a list of referrals where users may obtain additional resources on polymyositis are included.