RT Journal Article SR Electronic T1 Down's syndrome screening: a controversial test, with more controversy to come! JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 573 OP 573 DO 10.1136/jcp.54.7.573-a VO 54 IS 7 A1 N J Sebire YR 2001 UL http://jcp.bmj.com/content/54/7/573.2.abstract AB