1. Department of Medicine; Hurley Medical Center; Flint MI USA
2. Division of Hematology and Oncology; Department of Medicine; Michigan State University; East Lansing MI USA
3. Anticoagulation and Clinical Thrombosis Services; North Shore-LIJ Health System; Manhasset NY USA
4. Department of Medicine; Hofstra North Shore-LIJ School of Medicine; Manhasset NY USA
5. Department of Medicine; Thrombosis Service; Thrombosis and Atherosclerosis Research Institute; McMaster University; Hamilton ON Canada