547,961 STERN GERALD MALCOLM, LEES ANDREW Parkinson s disease : the facts / Gerald [Malcolm] Stern and Andrew Lees. - new ed - Qxford ; New York ; Toronto : Oxford University Press, 1990. -VIII, [2], 85 s., [8] s. tabl. : il. ; 23 cm (Oxford Medical Publications) ISBN 0-19-261938-1