Khatun, S. A.; Islam, M. R.; Khatun, H.; Islam, F.; Saha, S. Therapeutic Effectiveness of Glyceryl Trinitrate (GTN) in the Treatment of Uncomplicated Chronic Anal Fissure (CAF). J. Dhaka Natl. Med. Coll. Hosp. 2021, 27, 26-29.