00393pab a2200145 454500008004000000100001600040245006800056260000900124300001400133362000800147650002000155700001700175700002600192773002900218180718b2005   xxu||||| |||| 00| 0 eng d  aAizer, Anna  aAccess to care, provider choice, and the infant health gradient  c2005  ap.248-52.  aMay  aHealth services  aStabil, Mark  aLieras-Muney, Adriana  aAmerican Economic Review