Cystic fibrosis in black population.
D000293:Adolescent; D000328:Adult; D001741:Black or African American; D002648:Child; D002675:Child, Preschool; D003550:Cystic Fibrosis / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009519:New York City