title: Is contrast venography a valid surrogate outcome measure in venous thromboembolism prevention studies?
authors.forename: A E M
authors.initials: AE
authors.lastname: Segers
authors.forename: M H
authors.initials: MH
authors.lastname: Prins
authors.forename: A W A
authors.initials: AW
authors.lastname: Lensing
authors.forename: H R
authors.initials: HR
authors.lastname: Buller
mesh_terms: D015415:Biomarkers; D002986:Clinical Trials as Topic; D003287:Contrast Media / Q000494:pharmacology*; D006801:Humans; D010690:Phlebography / Q000379:methods*; D013923:Thromboembolism / Q000517:prevention & control*; D016896:Treatment Outcome; D020246:Venous Thrombosis / Q000517:prevention & control*
chemical_list: D015415:Biomarkers; D003287:Contrast Media