umls-concept:C0005129 | skos:definition | MSH: A familial coagulation disorder characterized by a prolonged bleeding time, unusually large platelets, and impaired prothrombin consumption.,NCI: A rare, autosomal recessive bleeding disorder characterized by deficiency or absence of the Ib/IX/V complex on the surface of platelets. It results in thrombocytopenia, prolonged bleeding time and the presence of giant platelets. | lld:umls |