Chen, PhD, Cuiping, Shay Bujanover, MD, and Anita Gupta, DO, PharmD. 2015. “Effect of Dosing Interval on Pharmacokinetics of Fentanyl Pectin Nasal Spray from a Crossover Study”. Journal of Opioid Management 11 (2):139-46. https://doi.org/10.5055/jom.2015.0263.