Omara, MD, A. F., Ahmed, MD, S. A. and Abusabaa, MD, M. M. A. (2021) “Role of ultralow dose of naloxone as an adjuvant to fentanyl–bupivacaine in thoracic paravertebral block analgesia after modified radical mastectomy: Randomized controlled trial”, Journal of Opioid Management, 17(5), pp. 389–396. doi: 10.5055/jom.2021.0672.