FRONTIERS IN PARKINSONS-DISEASE A SYMPOSIUM CELEBRATING THE 40TH ANNIVERSARY OF THE PARKINSONS-DISEASE-FOUNDATION, NEW-YORK-CITY, MAY 31, 1997 - PREFACE
S. Fahn et al., FRONTIERS IN PARKINSONS-DISEASE A SYMPOSIUM CELEBRATING THE 40TH ANNIVERSARY OF THE PARKINSONS-DISEASE-FOUNDATION, NEW-YORK-CITY, MAY 31, 1997 - PREFACE, Movement disorders, 13, 1998, pp. 1-1