TY - JOUR AU - Roberts C. AU - Peat B. AU - Algert C. AU - Raynes-Greenow C. BT - Australian and New Zealand Journal of Obstetrics and Gynaecology LA - eng LB - epidemiologyjournal PY - 2002 SP - 51 EP - 4 T2 - Australian and New Zealand Journal of Obstetrics and Gynaecology TI - Higher order multiple prenancies in NSW, 1990-1999 VL - 42 ER -