Review Article

Olfactory Loss in Parkinson's Disease

Figure 3

“Sniffin’ Sticks” test kit which is comprised of 3 individual tests of olfactory function (phenyl ethyl alcohol odor threshold, odor discrimination, and odor identification). The scores of the individual tests are summated to the so-called “TDI score” which is a reliable means to estimate the degree of olfactory function.
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