TY - BOOK AU - Underwood, M AU - Hannaford, P AU - Slowther, A ED - Rcgp ED - Royal College General Practitioners TI - Randomised controlled trials and multi-centre research SN - 0850842514 PY - 2000/// PB - RCGP KW - Clinical trials KW - Research KW - Ethics, medical KW - Evidence based practice KW - Evaluation studies N1 - Master Classes in Primary Care Research No. 4 ER -