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Flow diagram of patient inclusion. CSF indicates cerebrospinal fluid; DCI, delayed cerebral ischemia; GCS, Glasgow Coma Scale; RT-qPCR, real-time quantification polymerase chain reaction; and SAH, subarachnoid hemorrhage. *GCS <7 (2 because of poor neurological performance, 1 needed heavy sedation for cardiopulmonary complication, and 1 had a thrombus of a posterior inferior cerebellar artery at day 3).
