TY - JOUR AU - Roberts C. AU - Algert C. AU - Todd A. BT - Australasian Epidemiologist (AE) LA - eng LB - CVjournal PY - 2003 SP - 10 EP - 14 T2 - Australasian Epidemiologist (AE) TI - Using routinely collected perinatal data to monitor evidence-based obstetric practice: restrictive use of episiotomy VL - 10 ER -