Such a fistula may be the anastomosis of a natural artery and vein, a bovine graft, or a synthetic polytetrafluoroethylene (PTFE) graft. The bovine graft is taken from the bovine carotid artery and anastomosed to the vein and artery of the patient.
Definition of verify. verified. ; verifying. transitive verb. 1 : to confirm or substantiate in law by oath. 2 : to establish the truth, accuracy, or reality of verify the claim.
evidence that establishes or confirms the accuracy or truth of something: We could find no verification for his fantastic claims. 4. a formal assertion of the truth of something, as by oath or affidavit. 5. the process of research, examination, etc., required to prove or establish authenticity or validity. 6. Law. a short confirmatory affidavit at the end of a pleading or petition.