_:vb50953628 . _:vb50953628 . _:vb50953628 "url:https://www.ncbi.nlm.nih.gov/pubmed/17036563"^^ . _:vb50953628 . _:vb50953628 . _:vb50953628 "url:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4612215/"^^ . _:vb50953628 "A nutritional deficiency disease that is characterized by deficiency of copper, causing spastic gait and ataxia, often with anemia and neutropenia, has_symptom imbalance and jerking movements, and has_material_basis_in copper deficiency possibly due to malabsorption or excess zinc ingestion."^^ . _:vb50953628 .