Heifetz clip failure. A metallurgical study.
D000368:Aged; D006801:Humans; D002532:Intracranial Aneurysm / Q000473:pathology / Q000601:surgery*; D008297:Male; D008669:Metallurgy; D008855:Microscopy, Electron, Scanning; D009493:Neurosurgery / Q000295:instrumentation*