00348nas a2200145   4500000000100000008004100001100001500042700001500057700001200072700001400084700001300098245007300111300001100184490000700195       2002                            d1 aDouglas I.1 aRoberts C.1 aPeat B.1 aAlgert C.1 aTracy S.00aTrends in labour and birth interventions among low-risk women in NSW  a176-810 v42