00411pab a2200133 454500008004000000100001800040245009700058260000900155300001300164362001100177650003600188650002000224773003300244180718b2002   xxu||||| |||| 00| 0 eng d  aJack, William  aPublic intervention in health insurance markets: theory and four examples from Latin America  c2002  ap.67-88.  aSpring  aSocial security - Latin America  aSocial security  aWorld Bank Research Observer