Tuberculin testing in Minnesota schools, rural and urban.
DOUGLASS
J E
JE
D002648:Child; D006801:Humans; D055633:Immune System Phenomena; D007223:Infant; D008910:Minnesota; D012572:School Health Services; D012574:Schools; D014373:Tuberculin; D014374:Tuberculin Test
D014373:Tuberculin
SCHOOL HEALTH; TUBERCULIN REACTION/in infancy and childhood