T. L, R. P, Thakkar NA, Jawahar L, Rajendran PK, E. G, Rajan SV. The role of pregnancy-associated plasma protein-a level in the first trimester of pregnancy and clinical outcome in an urban referral centre. Int J Reprod Contracept Obstet Gynecol [Internet]. 2019 Sep. 26 [cited 2025 Dec. 4];8(10):3884-8. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/6998