Portenoy, MD, Russell K., William Raffaeli, MD, Luis M. Torres, MD, Thomas Sitte, Akhil Chandra Deka, MD, Ileana Gonzalez Herrera, MD, and Mark S. Wallace, MD. “Long-Term Safety, Tolerability, and Consistency of Effect of Fentanyl Pectin Nasal Spray for Breakthrough Cancer Pain in Opioid-Tolerant Patients”. Journal of Opioid Management 6, no. 5 (January 29, 2018): 319–328. Accessed April 25, 2024. https://wmpllc.org/ojs/index.php/jom/article/view/900.