Drug Therapy of Parkinsonism
NEJM 295:814, Bianchine,J.R., 1976
Drugs that Reduce Efficacy of Levodopa
(Letter) , NEJM 295:153876., Hausner,R., 1976
Drug Therapy of Parkinsonism
NEJM 287:20, Yahr,M.,et al, 1972
Drug-Induced Movement Disorders
Postgrad Med 180, 1971, Sept., North,R., 1971