Perthes' disease.
D000293:Adolescent; D002648:Child; D000013:Congenital Abnormalities / Q000150:complications*; D005260:Female; D006618:Hip Dislocation, Congenital / Q000150:complications*; D006801:Humans; D007231:Infant, Newborn; D007873:Legg-Calve-Perthes Disease / Q000209:etiology*; D008297:Male; D010007:Osteochondritis / Q000209:etiology*; D011247:Pregnancy