Incorrect Unit of Measure

In the Original investigation entitled “Association of Biotin Ingestion With Performance of Hormone and Nonhormone Assays in Healthy Adults”¹ published September 26, 2017, an incorrect unit of measure for biotin was published in the Statistical Analysis section of the text and in the biotin section head in Table 1. The unit of measure should have be reported as pg/mL. This article was corrected online.