D SJ, G. V, Rai R, Banu R, . J. COVID-19 second wave deadlier than first in pregnant women: a comparative observational study and the COVID saga continues. Int J Reprod Contracept Obstet Gynecol [Internet]. 2021 Sep. 27 [cited 2025 Oct. 2];10(10):3909-14. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/10734