Chen Q, Hsai HL, Overman R, Bryan W, Pepin M, Mariano ER, Mudumbai SC, Bucheit T, Krishnamoorthy V, Good CB, Brookhart A, Raghunathan K. Impact Of An Opioid Safety Initiative On Patients Undergoing Knee Arthroplasty: A Time Series Analysis. Anesthesiology. 2019; 131(2):369-380. https://doi.org/10.1097/aln.0000000000002771