Natural selection and population diversity.
D000755:Anemia, Sickle Cell / Q000235:genetics; D001789:Blood Group Antigens; D003431:Cross-Cultural Comparison; D005828:Genetics, Population; D006454:Hemoglobins; D006801:Humans; D011110:Polymorphism, Genetic; D012641:Selection, Genetic
D001789:Blood Group Antigens; D006454:Hemoglobins