HUSSAIN, Shabeer; AMMAR , Ahmed Siddique; HAMEED, Ahmed Raza; ASLAM, Imran; AFZAL, Ameer. Comparison of outcome of botulinum toxin injection with and without glyceryl trinitrate in chronic anal fissure in terms of post operative pain and healing. Journal of the Pakistan Medical Association, [S. l.], v. 74, n. 7, p. 1245–1248, 2024. DOI: 10.47391/JPMA.9726. Disponível em: https://www.jpma.org.pk/index.php/public_html/article/view/9726. Acesso em: 17 aug. 2026.