1. First trimester transvaginal sonographic diagnosis of fetal anomalies;Rottem;Lancet,1989
2. First-trimester and early second trimester diagnosis of nuchal cystic hygroma by transvaginal sonography: diverse prognosis of septated from nonseptated lesion;Bronshtein;Am J Obstet Gynecol,1989
3. Spontaneous resolution of fetal cystic hygroma m Down's syndrome;Rodis;Obstet Gynecol,1988
4. J. Szabó, J. Gellén, G. Szemere, Nonimmune hydrops in trisomy 18: diagnosis by chorionic villus sampling and vaginosonography in the first trimester, Br J Obstet Gynaecol ((in press)).