Rouquet Y, Choiset A, Girard S, Thepot F, Poenaru L
J Gynecol Obstet Biol Reprod (Paris). 1984;13(4):403-7.
The authors report on 69 samples of chorionic villi taken from patients who were undergoing therapeutic termination of pregnancy. These samples were taken using small forceps which were guided by ultrasound. The reliability and the chances of culturing these villi in order to work out the caryotype of the fetus and to study the enzymes is discussed.