[1]
Kirsh, PhD, K.L., Christo, MD, MBA, P.J., Heit, MD, H., Steffel, PharmD, K. and Passik, PhD, S.D. 2015. Specimen validity testing in urine drug monitoring of medications and illicit drugs: Clinical implications. Journal of Opioid Management. 11, 1 (Jan. 2015). DOI:https://doi.org/10.5055/jom.2015.0252.