Raza, V. F.; Mahmood, Q.; Waris, I.; Malik, M. S.; Irshad, K.; Khan, K. J. Pregabalin As an Adjunct Analgesic in Multimodal Pain Management in Patients Presenting With Acute Peri-Anal Fissure. Pak Armed Forces Med J 2023, 73, 1033-1036.