Parkinson's disease : a new approach to treatment : report of an international clinical symposium Symmetrel in Parkinsonism held at the Royal Garden Hotel, London, 2-5, June 1971, under the chairmanship of Dr. Maurice Parsonage /
edited by G.F.B. Birdwood, S.S.B. Gilder [and] C.A.S. Wink.
- London ; New York : London ; New York : Academic Press, 1971.