00628nam a22002417i 4500 20141212093702.0 960712s1996 sp gr 000 0 spa c eng FOX, M.H. DO INCREASES IN PAYMENTS FOR OBSTETRICAL DELIVERIES AFFECT PRENATAL CARE? Atención materno-infantil Coste Efectos Perinatalidad Documental PHUA, K.L. PUBLIC HEALTH REPORTS Vol. 110, no. 3 (1995), p. 319-326 40.3 A3a AR 19960712 R.945 AR