title: The international EC/IC bypass study.
mesh_terms: D002548:Cerebral Revascularization; D002561:Cerebrovascular Disorders / Q000601:surgery*; D002986:Clinical Trials as Topic; D005060:Europe; D006801:Humans; D007391:International Cooperation; D002546:Ischemic Attack, Transient / Q000601:surgery*; D007564:Japan; D009656:North America