1.
Lapanan D. Risk Factors Associated with Third and Fourth - Degree Lacerations in Spontaneous Vaginal Deliveries. Thai J Obstet Gynaecol [internet]. 2000 Jan. 1 [cited 2026 Sep. 28];12(1):27-34. available from: https://he02.tci-thaijo.org/index.php/tjog/article/view/256671