The Catechol-O-Methyltransferase (COMT) Inhibitor Entacapone Enhances the Pharmacokinetic and Clinical Response to Sinemet CR in Parkinson's Disease
JNNP 68:589-594, Piccinni,P.,et al, 2000
Drug Treatment of Parkinson's Disease
BMJ 310:575-579, Quinn,N., 1995