Family study in sickle cell disease in Nigeria.
D000293:Adolescent; D000755:Anemia, Sickle Cell / Q000235:genetics* / Q000401:mortality; D002648:Child; D002675:Child, Preschool; D005260:Female; D005838:Genotype; D006801:Humans; D007223:Infant; D008297:Male; D009549:Nigeria; D010865:Pilot Projects