Institution: | 1. Departments of Obstetrics and Gynecology of the Free Universities of Brussels (U.L.B., V.U.B.) Hôpital Saint Pierre, Rue Haute. 322, B-1000 Brussels, Belgium;2. Departments of Genetics of the Free Universities of Brussels (U.L.B., V.U.B.) Hôpital Saint Pierre, Rue Haute, 322, B-1000 Brussels, Belgium |