McCaffrey, PhD S, Manser, BA KA, Trudeau, PhD KJ, Niebler, DO G, Brown, MD C, Zarycranski, MS D, Budman, PhD SH. The natural history of prescription opioid abuse: A pilot study exploring change in routes of administration and motivation for changes. J of Opioid Management [Internet]. 2018 Nov. 1 [cited 2024 Nov. 27];14(6):397-405. Available from: https://wmpllc.org/ojs/index.php/jom/article/view/2271