Reference
- Ergin T., Baltaci V., Zeynelogu H.B., Duran E.H., Ergenell M.H. and Batiglu S. (2001) Non-invasive early prenatal diagnosis using fluorescent in situ hybridization on transcer-vical cells: comparison of two different methods for retrieval. European Journal of Obstetrics, Gynaecology and Reproduc-tive Biology, 95, 37–41.
- Kingdom J., Sherlock J., Rodeck C. and Adinolfi M. (1995) Detection of trophoblast cells in transcervical samples collected by lavage or cytobrush. Obstetrics and Gynecology, 86, 283–288.
- Shettles L.B. (1971) Use of the Y chromosome in prenatal sex determination. Nature, 230, 52–53.