The Original Investigation titled “Development and Psychometric Validation of the Olfactory Dysfunction Outcomes Rating,”1 published online October 20, 2022, and in the December 2022 print issue, had omitted the copyright notice for the Olfactory Dysfunction Outcomes Rating (ODOR) questionnaire in the eAppendix in the Supplement. The questionnaire is copyrighted 2022 by Washington University in St Louis School of Medicine and was published with permission. The Supplement has been corrected online.