Nigel Mackman PhD, John C. Parker Distinguished Professor of Medicine, gives keynote speech at University of Michigan Frankel Cardiovascular Center Symposium. On Monday September 23rd, Nigel Mackman gave his speech, “Mechanisms of Cancer- Associated Thrombosis and Bleeding: Focus on Tissue Factor- Positive Extracellular Vesicles” at the University of Michigan Frankel Cardiovascular Center Symposium.