RT Journal Article SR Electronic T1 Loss of Dopamine-D2 Receptor Binding Sites in Parkinsonian Plus Syndromes JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 954 OP 960 VO 39 IS 6 A1 Johannes Hierholzer A1 Michael Cordes A1 Stephan Venz A1 Ludwig Schelosky A1 Cordula Harisch A1 Wolf Richter A1 Uwe Keske A1 Norbert Hosten A1 Jürgen Mäurer A1 Werner Poewe A1 Roland Felix YR 1998 UL http://jnm.snmjournals.org/content/39/6/954.abstract AB