In the Original Investigation titled, “Fentanyl, Heroin, Methamphetamine, and Cocaine Analyte Concentrations in Urine Drug Testing Specimens”1 published October 24, 2024, there was an error in the Figure 4 key. “South Central” should be “East South Central.” The article has been corrected.
Reference
- 1.Huhn AS, Whitley P, Bolin BL, Dunn KE. Fentanyl, heroin, methamphetamine, and cocaine analyte concentrations in urine drug testing specimens. JAMA Netw Open. 2024;7(10):e2441063. doi: 10.1001/jamanetworkopen.2024.41063 [DOI] [PMC free article] [PubMed] [Google Scholar]