title: Reply to Letter Regarding "The Value of Rotational Venography Versus Anterior-Posterior Venography in 100 Consecutive IVC Filter Retrievals".
authors.affiliation: Division of Interventional Radiology, Department of Radiology, Hospital of University of Pennsylvania Medical Center, 1 Silverstein, 3400 Spruce St., Philadelphia, PA, 19104, USA. stav@uphs.upenn.edu.
authors.forename: S William
authors.initials: SW
authors.lastname: Stavropoulos
authors.affiliation: Division of Interventional Radiology, Department of Radiology, Hospital of University of Pennsylvania Medical Center, 1 Silverstein, 3400 Spruce St., Philadelphia, PA, 19104, USA.
authors.forename: Scott O
authors.initials: SO
authors.lastname: Trerotola
authors.affiliation: Division of Interventional Radiology, Department of Radiology, Hospital of University of Pennsylvania Medical Center, 1 Silverstein, 3400 Spruce St., Philadelphia, PA, 19104, USA.
authors.forename: Ryan M
authors.identifier: http://orcid.org/0000-0001-7499-4245
authors.initials: RM
authors.lastname: Kiefer
mesh_terms: D006801:Humans; D010690:Phlebography; D016306:Vena Cava Filters; D014682:Vena Cava, Inferior