Accumulating evidence from epidemiologic studies, laboratory basic research and animal models indicates that exposure to environmental toxins can increase risk of the disease.
Medicare, the U.S. government health insurance program, covers more than 63 million people, with more than 49 million people also receiving prescription drug coverage.
Dyskinesia is a condition involving erratic, uncontrollable muscle movements such as twitches, jerks, twisting, or writhing of the face, arms, legs, or trunk.