Cite

    Ferreira, J. C. P., Grati, F. R., Bajaj, K., Malvestiti, F., Grimi, M. B., Trotta, A., Liuti, R., Milani, S., Branca, L., Hartman, J., Maggi, F., Simoni, G., & Gross, S. J. (2016). frequency of fetal karyotype abnormalities in women undergoing invasive testing in the absence of ultrasound and other high‐risk indications. Prenatal diagnosis, 36, 1146–1155. http://access.bl.uk/ark:/81055/vdc_100039522674.0x000057