Prenatal chromosome determination. A study of 219 cases.

Abnormalities, Multiple Abortion, Spontaneous Abortion, Therapeutic Adult Amniocentesis/adverse effects Chromosome Aberrations/diagnosis,genetics Chromosome Disorders Chromosomes, Human, 13-15 Chromosomes, Human, 16-18 Congenital Abnormalities Down Syndrome/diagnosis Female Fetomaternal Transfusion/etiology Genetic Counseling Humans Infant, Newborn Karyotyping Male Pregnancy Sex Determination Analysis Skull/abnormalities Syndrome Trisomy