Gudin, MD, J., N. Mehta, MD, F. L. McClure, PhD, J. K. Niles, MA, and H. W. Kaufman, MD. “Shorter Drug Testing Intervals Are Associated With Improved Drug Misuse Rates”. Journal of Opioid Management, vol. 16, no. 5, Sept. 2020, pp. 357-73, doi:10.5055/jom.2020.0591.