title: Which surrogate endpoints are valid for assessing thrombotic tendency?
authors.affiliation: Division of Gastrointestinal and Coagulation Drug Products, Food and Drug Administration, Rockville, MD 20857.
authors.forename: S
authors.initials: S
authors.lastname: Fredd
mesh_terms: D001777:Blood Coagulation; D006801:Humans; D020151:Protein C Deficiency; D012307:Risk Factors; D013927:Thrombosis / Q000097:blood / Q000209:etiology / Q000517:prevention & control*