Ahuja, MD, D., Choudhary, MD, N., Kumar, MD, V., Gupta, MD, N. and Bharati, DM, S. J. (2020) “Managing breakthrough pain for advanced malignancy in elderly patients: A real challenge”, Journal of Opioid Management, 16(3), pp. 219–222. doi: 10.5055/jom.2020.0571.