Parkinson's (IMAGE) Arizona State University Caption Illustration of Parkinson's disease by William Richard Gowers, which was first published in "A Manual of Diseases of the Nervous System" (1886). Credit Public Domain Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.