RT Journal Article SR Electronic T1 Prenatal diagnosis and genetic counselling JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 150 OP 155 DO 10.1136/jcp.s3-8.1.150 VO s3-8 IS 1 A1 Brock, D. J. H. YR 1974 UL http://jcp.bmj.com/content/s3-8/1/150.abstract AB