1. Sinai Center for Thrombosis Research, Johns Hopkins University; 2401 West Belvedere Avenue, Schapiro Research Building-R 202 Baltimore; MD 21215 USA
2. Columbia University; New York NY USA
3. Frederiksberg Hospital; Copenhagen Denmark
4. Wake Forest University School of Medicine; Winston-Salem NC USA
5. Texas Heart Institute; Houston TX USA
6. Duke Clinical Research Institute; Durham NC USA