Because the severity of stroke is an important factor in recovery, all patients will undergo brain scans prior to taking part in the study to determine the degree of damage to the brain.
由于中风的严重程度是关系到恢复的重要因素，所有的病人在参与这次研究之前都会进行脑部扫描，以确定脑部损伤程度。
All the participants in the study had MRI brain scans done before the study began and again a year later when the study ended.
所有此项研究的参与者在研究开始时和研究结束一年后都要进行核磁共振成像的大脑扫描。
Nearly all the children in the study had bleeding in the brain and retinal hemorrhages.
研究中，几乎所有的孩子都有脑出血或者视网膜出血的现象。
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