Anhedonia and cognitive impairment in Parkinson's disease: Italian validation of the Snaith-Hamilton Pleasure Scale and its application in the clinical routine practice during the PRIAMO study.
Santangelo G, Morgante L, Savica R, Marconi R, Grasso L, Antonini A, De Gaspari D, Ottaviani D, Tiple D, Simoni L, et al. Parkinsonism Relat Disord. 2009 Sep; 15(8):576-81. Epub 2009 Apr 10.