Quantitation and Validation of 34 Fentanyl Analogs from Liver Tissue Using a QuEChERS Extraction and LC–MS-MS Analysis.Published in:Journal of Analytical Toxicology, 2022, v. 46, n. 3, p. 232, doi. 10.1093/jat/bkab009By:Cox, Joseph;Mathison, Kylea;Ott, Colby;DelTondo, Joseph;Kraner, James C;DeCaprio, Anthony P;Arroyo-Mora, Luis EPublication type:Article