Development and progression of motor fluctuations and side effects in Parkinson's disease: comparison of Sinemet CR versus carbidopa/levodopa.
Goetz CG, Tanner CM, Gilley DW, Klawans HL. Development and progression of motor fluctuations and side effects in Parkinson's disease: comparison of Sinemet CR versus carbidopa/levodopa. Neurology. 1989 Nov; 39(11 Suppl 2):63-6; discussion 72-3.