Popescu, MD A, Mitra, MD R, Ballantyne, MD, FRCA J. Poor pain relief and possible toxicity from high-dose intrathecal opioid treatment: Report of two cases. J of Opioid Management [Internet]. 2006 Jan. 1 [cited 2024 Nov. 24];2(1):43-7. Available from: https://wmpllc.org/ojs/index.php/jom/article/view/1107