Sarmalkar MS, Singh S, Nayak AH. Maternal and perinatal outcome in women with threatened abortion in first trimester. Int J Reprod Contracept Obstet Gynecol [Internet]. 2017 Jan. 4 [cited 2026 Feb. 13];5(5):1438-45. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/1104