Neonatal rickets in one of identical twins.
D004200:Diseases in Twins; D005260:Female; D006801:Humans; D007223:Infant; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000209:etiology*; D011247:Pregnancy; D012279:Rickets / Q000209:etiology*; D014430:Twins, Monozygotic