https://www.vinmec.com/eng/tag/perineal-tear-20f774cd
Perineal tear | Vinmec
perineal tearvinmec
https://www.cochrane.org/ms/evidence/CD005125_antibiotic-prophylaxis-third-and-fourth-degree-perineal-tear-during-vaginal-birth
Antibiotic prophylaxis for third- and fourth-degree perineal tear during vaginal birth | Cochrane