title: Low dietary calcium intake and its role in the pathogenesis of rickets.
mesh_terms: D000328:Adult; D000349:Africa; D002136:Calcium, Dietary / Q000008:administration & dosage; D002648:Child; D002675:Child, Preschool; D006801:Humans; D012279:Rickets / Q000453:epidemiology / Q000209:etiology*; D013019:South Africa
chemical_list: D002136:Calcium, Dietary