RT Journal Article SR Electronic T1 Physical and psychomotor development of 1799 children born after second trimester amniocentesis for maternal serum positive triple test screening and normal prenatal karyotype JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP e75 OP e75 DO 10.1136/jmg.39.12.e75 VO 39 IS 12 A1 I Witters A1 P Moerman A1 A Van Assche A1 J-P Fryns YR 2002 UL http://jmg.bmj.com/content/39/12/e75.abstract AB