title: ESPRIT: protocol change.
authors: E L
authors: EL
authors: De Schryver
mesh_terms: D000368:Aged; D002545:Brain Ischemia / Q000517:prevention & control* / Q000628:therapy*; D006801:Humans; D015337:Multicenter Studies as Topic / Q000379:methods; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D020521:Stroke / Q000517:prevention & control*