title: Expanded PTFE: long-term follow-up.
mesh_terms: D000818:Animals; D001807:Blood Vessel Prosthesis; D004285:Dogs; D005500:Follow-Up Studies; D011138:Polytetrafluoroethylene; D014683:Vena Cava, Superior / Q000473:pathology / Q000601:surgery; D014945:Wound Healing
chemical_list: D011138:Polytetrafluoroethylene