Household and community poverty, biomass use, and air pollution in Accra, Ghana.
Zhou Z, Dionisio KL, Arku RE, Quaye A, Hughes AF, Vallarino J, Spengler JD, Hill A, Agyei-Mensah S, Ezzati M. Proc Natl Acad Sci U S A. 2011 Jul 5; 108(27):11028-33. Epub 2011 Jun 20.