Fig. 1From: Sphingosine 1-phosphate levels in cerebrospinal fluid after subarachnoid hemorrhageS1P levels in CSF in SAH, measured at day 1 to day 14. S1P levels in CSF were measured with high sensitivity tandem mass spectrometry. Only values above the threshold of detection (0.2 ng/ml = 0.52 nM) are depicted. S1P levels of all control patients were below the threshold of detectionBack to article page