TY - BOOK AU - Wald, N J AU - Kennard, A AU - Hackshaw, A AU - NHS, R&d HTA Programme ED - HTA ED - Health Technology Assessment TI - Antenatal screening for Down's syndrome PY - 1998/// PB - HTA KW - Down syndrome KW - Prenatal care KW - Screening KW - Evidence based practice KW - Outcome assessment N1 - Health Technology Assessment, vol. 2,no. 1, 1998. ISSN 1366-5278 ER -