Ocular toxoplasmosis among Negro immigrants in London.
D001741:Black or African American; D044383:Black People; D002825:Chorioretinitis / Q000453:epidemiology; D004641:Emigration and Immigration; D006801:Humans; D008131:London; D012189:Retrospective Studies; D014126:Toxoplasmosis, Ocular / Q000453:epidemiology*; D014605:Uveitis / Q000453:epidemiology