Juneja, S.K., Tandon, P., Sharma, A. and Sharma, A. 2020. Sensitivity and specificity of prenatal screening methods for detection of risk of fetal chromosomal abnormalities. International Journal of Reproduction, Contraception, Obstetrics and Gynecology. 9, 2 (Jan. 2020), 540–544. DOI:https://doi.org/10.18203/2320-1770.ijrcog20200332.