Ivon Ijaz Bhatti, Rajia Nayaar, Aamer Wadud, Arsalan Siraj, Abbas Hassnain Kazmi, Abdul Wali Khan 2024. Comparison of Mean Healing Time Between Topical Nitroglycerin and Lateral Internal Sphincterotomy for Chronic Anal Fissure. Pakistan Journal of Medical & Health Sciences. 18, 01 (Jan. 2024), 427. DOI:https://doi.org/10.53350/pjmhs02024181427.