Salivary Acetylcholinesterase Activity Is Increased in Parkinson’s Disease: A Potential Marker of Parasympathetic Dysfunction

Figure 3

Box-and-whiskers plot of AChE activity in the H&Y subgroups. The plot shows mean, 25th and 75th percentiles, minimum, and maximum values. The H&Y stage 3 group included only two samples that are represented as dots.