Adler, CH, KD Sethi, RA Hauser, TL Davis, JP Hammerstad, J Bertoni, RL Taylor, J Sanchez-Ramos, and CF O’Brien. 1997. “Adler CH, Sethi KD, Hauser RA, Davis TL, Hammerstad JP, Bertoni J, Taylor RL, Sanchez-Ramos J, O’Brien CF. Ropinirole for the Treatment of Early Parkinson’s Disease. Neurology 1997;49:393-399.”. Neurology.