[1] Natl & Kapodistrian Univ Athens, Dept Obstet & Gynecol 1, V Sofias 80 & Lourou St, Athens 11528, Greece
[2] Athens Univ, Dept Obstet & Gynecol 1, Athens, Greece
[3] Fetal Maternal Med, Private Practice, Athens, Greece
[4] Natl & Kapodistrian Univ Athens, Alexandra Matern Hosp, Dept Genet, Athens, Greece
[5] Natl & Kapodistrian Univ Athens, Alexandra Matern Hosp, Dept Pathol, Athens, Greece