Trends in Perinatal MOrtality & Cerebral Palsy in Western Australia, 1967 to 1985
BMJ 304:1658-1663, Stanley,F.J.&Watson,L., 1992
Birth Asphyxia and Cerebral Palsy, Birth Asphyxia is Hard to Define and Measure but is Rarely the Cause of Cerebral Palsy
BMJ 299:279-282, Hall,D.M.B., 1989