Black preterm birth risk in nonblack neighborhoods: effects of Hispanic, Asian, and non-Hispanic white ethnic densities.
Mason SM, Kaufman JS, Daniels JL, Emch ME, Hogan VK, Savitz DA. Black preterm birth risk in nonblack neighborhoods: effects of Hispanic, Asian, and non-Hispanic white ethnic densities. Ann Epidemiol. 2011 Aug; 21(8):631-8.