Are Obstetrics and Gynecology Residents Proficient in the Repair of Third and Fourth Degree Perineal Tears?An Anonymous Survey in a Teaching Hospital in North Central Nigeria. International Journal of Biomedical Research, [S. l.], v. 6, n. 6, p. 399–401, 2015. DOI: 10.7439/ijbr.v6i6.2127. Disponível em: https://www.ssjournals.co.in/index.php/ijbr/article/view/2127. Acesso em: 17 mar. 2026.