Placebo response in Parkinson's disease: comparisons among 11 trials covering medical and surgical interventions.
Goetz CG, Wuu J, McDermott MP, Adler CH, Fahn S, Freed CR, Hauser RA, Olanow WC, Shoulson I, Tandon PK; Parkinson Study Group, Leurgans S.
Mov Disord. 2008 Apr 15;23(5):690-9.PMID: 18228568 [PubMed - indexed for MEDLINE]Related articles