Social and biological factors in child development.
D000293:Adolescent; D000755:Anemia, Sickle Cell / Q000150:complications*; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D011581:Psychological Tests; D012931:Social Environment