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Abstract
Mesh: See more » AfricaEconomicsHumansPublishing/statistics & numerical dataResearch/statistics & numerical data
Year: 2010 PMID: 20435210 DOI: 10.1016/S0140-6736(10)60640-X
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321