Low risk for subsequent subarachnoid hemorrhage for emergency department patients with headache, bloody cerebrospinal fluid, and negative findings on cerebrovascular imaging.
Thomas LE, Czuczman AD, Boulanger AB, Peak DA, Miller ES, Brown DF, Marill KA. Low risk for subsequent subarachnoid hemorrhage for emergency department patients with headache, bloody cerebrospinal fluid, and negative findings on cerebrovascular imaging. J Neurosurg. 2014 Jul; 121(1):24-31.