Vopat, Matthew, William Messamore, Jesse Trent, Ken Schmanke, Rosey Zackula, Shang-You Yang, and Tarun Bhargava. 2020. “Urine Screening for Opiod and Illicit Drugs in the Total Joint Arthroplasty Population”. Kansas Journal of Medicine 13 (1): 71-76. https://doi.org/10.17161/kjm.v13i1.13623.