Historical note on inheritance of sickle cell anemia.
D000755:Anemia, Sickle Cell / Q000235:genetics / Q000266:history*; D001938:Brazil; D005260:Female; D006579:Heterozygote; D049673:History, 20th Century; D006720:Homozygote; D006801:Humans; D008297:Male; D010375:Pedigree