Chazan, RN S, Ekstein, MD MP, Marouani, MD N, Weinbroum, MD AA. Ketamine for acute and subacute pain in opioid-tolerant patients. J of Opioid Management [Internet]. 2018 Jan. 30 [cited 2024 Nov. 21];4(3):173-80. Available from: https://wmpllc.org/ojs/index.php/jom/article/view/987