VWF and factor XI deficiency: Jensen Lab data associates VWF with several diseases, including pancreatic cancer, thrombotic thrombocytopenic purpura, hemophilia B, intermittent claudication, Von Willebrand’s disease, purpura, coronary artery disease, diabetic retinopathy, Factor VIII deficiency, thrombocytopenia, kidney cancer, breast cancer, Bernard–Soulier syndrome, vasculitis, Factor XIII deficiency, hypertension, Glanzmann’s thrombasthenia, cerebrovascular disease, carcinoma, melanoma, skin cancer, congenital afibrinogenemia, and Factor XI deficiency.