He is also the Medical Director of the Clinical Coagulation and the Platelet Antibody Laboratories at Duke. His research interests focus on immune-mediated thrombotic disorders, particularly antiphospholipid antibody syndrome and heparin-induced thrombocytopenia, and optimal use of antithrombotic strategies in complex clinical settings. His clinical interests focus on the diagnosis and management of complicated hemostatic and thrombotic disorders. He served on the National Comprehensive Cancer Network’s panel charged with developing practice guidelines for venous thromboembolic disease in patients with cancer, and he was co-chairman of the Surgeon General’s Workshop on Deep Vein Thrombosis, held on 8-9 May 2006. He is also one of the Board Members for the American Thrombosis and Hemostasis Network (ATHN).