title: The PREPIC Study Group. Eight-year follow-up of patients with permanent vena cava filters in the prevention of pulmonary embolism: the PREPIC (Prevention du Risque d'Embolie Pulmonaire par Interruption Cave) Randomized Study.
authors.affiliation: Department of Surgery, University of Michigan, Ann Arbor, MI, USA.
authors.forename: Lazar J
authors.initials: LJ
authors.lastname: Greenfield