title: Unexpected arteriovenous fistula in the arm of an intravenous drug abuser.
mesh_terms: D001132:Arm; D001164:Arteriovenous Fistula / Q000150:complications* / Q000209:etiology; D006801:Humans; D013120:Spinal Cord Neoplasms / Q000601:surgery; D019966:Substance-Related Disorders / Q000150:complications*