TY - JOUR T1 - The potential and limitations of opportunistic screening: data from a computer simulation of a general practice screening programme. JO - Br J Gen Pract PY - 1991/05/01 AU - Norman P AU - Fitter M ED - VL - 41 IS - 346 SP - 188 EP - 191 Y2 - 2024/12/22 ER -