Developing a deeper understanding of the impacts of lay health worker interventions: combining systematic reviews of effectiveness and cost-effectiveness with a realist review of programme theory

Lewin S, Glenton C, Walker D, Corluka A, Scheel I. Foredrag/poster 2008.16th Cochrane Colloquium, Freiburg, Germany. 3-7 October 2008 and 3rd Conference on Global Health and Vaccination Research. Bergen, Norway. 30-31 October 2008