Francesca R Grati1, Jose C P B Ferreira2, Komal Bajaj3. 1. Research & Development, Cytogenetics, Molecular Cytogenetics and Molecular Biology, TOMA Advanced Biomedical Assays, S.p.A., Busto Arsizio (VA), Italy. 2. Uniwersyteckie Centrum Zdrowia Kobiety i Noworodka, Warszawa, Poland. 3. Department of Obstetrics and Women's Health, Albert Einstein College of Medicine, Bronx, NY.