RASHDA IMRAN, HUMERA NASIR, IRAM NAZ. Risk factors for Anal Sphincter Tears. Journal of Rawalpindi Medical College, Rawalpindi, Pakistan, v. 16, n. 2, 2012. Disponível em: https://journalrmc.com/index.php/JRMC/article/view/579. Acesso em: 19 jan. 2026.