RT Journal Article SR Electronic T1 Subcutaneous and sublingual levodopa methyl ester in Parkinson's disease. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 373 DO 10.1136/jnnp.54.4.373 VO 54 IS 4 A1 B Kleedorfer A1 A J Lees A1 G M Stern YR 1991 UL http://jnnp.bmj.com/content/54/4/373.1.abstract AB