6. Has an ongoing hemorrhagic condition (e.g. upper digestive tract hemorrhage, hemoptysis, etc), or has a pre-existing condition that, in the Investigator's judgment may increase the risk for developing hemorrhage during the study (e.g. hemophilia). Transient hemorrhage (e.g. epistaxis, normal menstrual bleeding, gingival bleeding, hemorrhoidal hemorrhage, etc.) will not preclude enrollment.