title: Selective malabsorption of vitamin B12 without proteinuria or structural renal tract anomaly.
mesh_terms: D002675:Child, Preschool; D006801:Humans; D007674:Kidney Diseases / Q000150:complications; D008286:Malabsorption Syndromes / Q000150:complications; D008297:Male; D011507:Proteinuria / Q000150:complications; D014806:Vitamin B 12 Deficiency / Q000150:complications