National Center for Biotechnology Information NCBI NLM MEDLINE Ghana humans pubmed abstract nih national institutes of health national library of medicine research support non-u.s. gov't adult female male Child preschool Randomized Controlled Trial sensitivity and specificity family characteristics* health surveys health services accessibility / economics* developing countries malaria / diagnosis benchmarking health care costs malaria / drug therapy medical records malaria / economics parasitemia / diagnosis pmid:24040864 pmc3848569 doi:10.1186/1471-2458-13-853 evelyn korkor ansah timothy powell-jackson fees and charges* health services / statistics & numerical data* parasitemia / economics parasitemia / therapy prepaid health plans / economics* prepaid health plans / statistics & numerical data