Prevalence of smell loss in Parkinson's disease--a multicenter study.
Haehner A, Boesveldt S, Berendse HW, Mackay-Sim A, Fleischmann J, Silburn PA, Johnston AN, Mellick GD, Herting B, Reichmann H, Hummel T.
Haehner A, et al.
Parkinsonism Relat Disord. 2009 Aug;15(7):490-4. doi: 10.1016/j.parkreldis.2008.12.005. Epub 2009 Jan 11.
Parkinsonism Relat Disord. 2009.
PMID: 19138875