1 Department of Neurology, Neurological Institute, Cleveland Clinic, Cleveland, OH, USA.
2 Neurocritical Care Division, Departments of Neurology, Neurosurgery, Anesthesiology and Critical Care Medicine, Johns Hopkins Hospital, Baltimore, MD, USA.
3 Department of Anatomic Pathology, Pathology & Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA.
4 Cerebrovascular Center, Neurological Institute, Cleveland Clinic, 9500 Euclid Avenue/S80, Cleveland, OH, USA.
5 Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Kaufman Center for Heart Failure, Cleveland Clinic, 9500 Euclid Avenue/S80, Cleveland, OH, USA.
6 Cerebrovascular Center, Neurological Institute, Cleveland Clinic, 9500 Euclid Avenue/S80, Cleveland, OH, USA. uchinok@ccf.org.