2Fiorelli M, Bastianello S, yon Kummer R, et al. Hemorrhagic transformation within 36 hours of a cerebral infarct: relationships with early clinical deterioration and 3 - month outcome in the European Cooperative Aeute Stroke Study I (ECASS I) cohort[J]. Stroke, 1999, 30 ( 11 ) : 2280 - 2284.