“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, vol. 6, no. 6, June 2015, pp. 399-01, https://doi.org/10.7439/ijbr.v6i6.2127.