TY - BOOK AU - Britton, A AU - McKee, M AU - Black, N AU - NHS, R&d HTA Programme ED - HTA ED - Health Technology Assessment TI - Choosing between randomised and non-randomised studies: a systematic review PY - 1998/// PB - HTA KW - Clinical trials KW - Evidence based practice KW - Outcome assessment KW - Systematic reviews N1 - Health Technology Assessment vol. 2, no. 13, 1998. ISSN 1366-5278 ER -