Clinical Pharmacogenetics Implementation Consortium. CPIC guideline for opioids and CYP2D6, OPRM1, and COMT. [Updated: Dec 2020; Accessed: Jul 2022]

Clinical Pharmacogenetics Implementation Consortium. CPIC guideline for opioids and CYP2D6, OPRM1, and COMT. [Updated: Dec 2020; Accessed: Jul 2022]