[Direct chromosome preparation of chorionic villi in early pregnancy].
D002824:Chorionic Villi / Q000648:ultrastructure*; D002875:Chromosomes / Q000648:ultrastructure*; D005260:Female; D005821:Genetic Techniques; D006801:Humans; D008722:Methods; D011247:Pregnancy; D011261:Pregnancy Trimester, First