A basic smell test is as sensitive as a dopamine transporter scan: comparison of olfaction, taste and DaTSCAN in the diagnosis of Parkinson's disease

J Deeb, M Shah, N Muhammed, R Gunasekera, K Gannon, L. J Findley and C. H. Hawkes

QJM: An International Journal of Medicine 103 ( 12 ): 941 - 952 , 2010