Sengupta, S., Rawat , S., Sharma, K., Kumar, K., Upadhyay, S., & Gupta, P. (2023). Correlation of maternal age and combined assessments on risk of chromosomal anomaly during prenatal screening. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 12(6), 1586–1591. https://doi.org/10.18203/2320-1770.ijrcog20231415