RT Journal Article SR Electronic T1 Drug Interactions and Their Mechanisms JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 515 OP 515 DO 10.1136/jnnp.40.5.515-c VO 40 IS 5 A1 C. D. Marsden YR 1977 UL http://jnnp.bmj.com/content/40/5/515.4.abstract AB