1. Stanford Stroke Center, Department of Neurology, Stanford University, Stanford, CA, USA
2. Department of Neurosurgery, Stanford University, Stanford, CA, USA
3. Stanford University Mass Spectrometry, Stanford University, Stanford, CA, USA
4. Department of Medicine, Stanford University, Stanford, CA, USA
5. Stroke Center, Department of Neurology, Hopital Pierre-Paul Riquet, Toulouse, France