Ahuja, MD, Deepti, Nandan Choudhary, MD, Vinod Kumar, MD, Nishkarsh Gupta, MD, and Sachidanand Jee Bharati, DM. 2020. “Managing Breakthrough Pain for Advanced Malignancy in Elderly Patients: A Real Challenge”. Journal of Opioid Management 16 (3):219-22. https://doi.org/10.5055/jom.2020.0571.