West, MS, R., Pesce, PhD, DABCC, A., West, PhD, C., Crews, PhD, B., Mikel, PhD, C., Rosenthal, DO, FAPA, M., Almazan, CLS, MT (ASCP), P. and Latyshev, MS, S. 2018. Observations of medication compliance by measurement of urinary drug concentrations in a pain management population. Journal of Opioid Management. 6, 4 (Jan. 2018), 253–257. DOI:https://doi.org/10.5055/jom.2010.0023.