Virdi S, Aditi, Kaur S. Variation of pregnancy-associated plasma protein-A: a level in the first trimester of pregnancy and its clinical outcome. Int J Reprod Contracept Obstet Gynecol [Internet]. 2026 Sep. 28 [cited 2026 Sep. 29];15(10):3925-30. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/17378