Despite the benefit of avoidance of lactose , many patients suffer from long-term complications including neurological deficits and ovarian failure .
O O O O O O B-ChemicalEntity O O B-OrganismTaxon O O O O O B-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature O B-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature O