title: Merci retriever.
mesh_terms: D002404:Catheterization / Q000295:instrumentation / Q000592:standards; D002983:Clinical Competence / Q000592:standards; D003406:Credentialing / Q000592:standards*; D004503:Education, Medical, Graduate / Q000592:standards*; D017128:Embolectomy / Q000295:instrumentation* / Q000379:methods / Q000592:standards; D006801:Humans; D020766:Intracranial Embolism / Q000601:surgery*; D008504:Medical Staff Privileges / Q000592:standards; D009493:Neurosurgery / Q000193:education / Q000592:standards*; D015642:Radiology, Interventional / Q000193:education / Q000592:standards*; D012955:Societies, Medical; D020521:Stroke / Q000601:surgery*; D014481:United States