In the ERRATUM section of the article "Non-motor features of Parkinson disease" by Anthony H. V. Schapira, K. Ray Chaudhuri, and Peter Jenner, it is noted that Figure 4 was incorrectly positioned, causing some labels to be cut off. This error has been corrected in the online version of the article, and the editors apologize for the mistake.In the ERRATUM section of the article "Non-motor features of Parkinson disease" by Anthony H. V. Schapira, K. Ray Chaudhuri, and Peter Jenner, it is noted that Figure 4 was incorrectly positioned, causing some labels to be cut off. This error has been corrected in the online version of the article, and the editors apologize for the mistake.