title: Health systems research in sub-Saharan Africa: scope, achievements, needs and prospects.
authors.forename: C M
authors.initials: CM
authors.lastname: Varkevisser
mesh_terms: D000349:Africa; D003362:Cost-Benefit Analysis; D006285:Health Planning / Q000191:economics; D006292:Health Priorities; D006301:Health Services Needs and Demand; D006302:Health Services Research / Q000379:methods / Q000639:trends*; D011787:Quality of Health Care