assertion retraction graph subject predicate object datatype annotation 1 0 graph DOID:0080841 IAO:0000115 An autoimmune disease of skin and connective tissue that is characterized by subepidermal blistering especially in the lower abdomen, groin, and flexor surfaces of the extremities, creating tense blisters that do not break easily. xsd:string "{""oio:hasDbXref"":[{""datatype"":""xsd:string"",""meta"":""owl:Axiom"",""object"":""url:https://rarediseases.org/rare-diseases/pemphigus/""}]}"