OC009: Evaluation of combined first‐trimester screening ‐ Czech multi‐center study

K. Dlouha1, I. Kucerova1, P. Calda2, D. Smetanova3, M. Brestak4, A. Hudec5, H. Viskova2, D. Stejskal3, J. Turek5, I. M. Malbohan6 1Institute for the Care of the Mother and Child, Prague, Czech Republic, 2Department of Obstetrics and Gynecology, First Medical Faculty, Charles University, Prague, Czech Republic, 3Gennet, Centre for Genetics and Assisted Reproduction, Prague, Czech Republic, 4Pronatal, Centre for Assisted Reproduction, Prague, Czech Republic, 5Department of Obstetrics and Gynecology, Medical Faculty in Pilsen, Charles University, Pilsen, Czech Republic, 6Department of Medical Biochemistry, First Medical Faculty, Charles University, Prague, Czech Republic