Kunkel, MD F, Fey, MS E, Borg, PhD D, Stripp, PhD R, Getto, BS C. Assessment of the use of oral fluid as a matrix for drug monitoring in patients undergoing treatment for opioid addiction. J of Opioid Management [Internet]. 2015 Sep. 1 [cited 2024 May 2];11(5):434-42. Available from: https://wmpllc.org/ojs/index.php/jom/article/view/221