Pictorial representation of the distribution of the sickle-cell trait by contours drawn by a computer-controlled X-Y plotter.
D000293:Adolescent; D000350:Africa, Central; D000755:Anemia, Sickle Cell / Q000453:epidemiology*; D001797:Blood Protein Electrophoresis; D002648:Child; D002675:Child, Preschool; D003201:Computers; D004812:Epidemiologic Methods; D005260:Female; D006455:Hemoglobins, Abnormal; D006801:Humans; D007223:Infant; D008297:Male; D008377:Maps as Topic; D015024:Zambia
D006455:Hemoglobins, Abnormal