assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:0080798 IAO:0000115 An acute megakaryocytic leukemia occurring in children with Down syndrome and that has_material_basis_in mutation in the GATA1 gene. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://pubmed.ncbi.nlm.nih.gov/26910243/""},{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://pubmed.ncbi.nlm.nih.gov/31606922/""}]}"