00493nam a2200121Ia 4500008004100000020001800041100005400059245013600113260002700249650002000276650003200296856004300328171212s9999    xx            000 0 und d  a9780833038524  aWynn, Barbara O.;Dutta, Arindam;Nelson, Martha I.  cWynn, Barbara O.;Dutta, Arindam;Nelson, Martha I.aChallenges in Program Evaluation of Health Interventions in Developing Countries  bRAND Corporationc2005  aHealth Sciences  aWorld heath; Medical policy  uwww.jstor.org/stable/10.7249/mg402hlth