1. Department of Neurology The Ohio State University Wexner Medical Center Columbus Ohio USA
2. Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine University of Pittsburgh School of Medicine Pittsburgh Pennsylvania USA
3. Departments of Critical Care Medicine, Neurology and Neurosurgery University of Pittsburgh School of Medicine Pittsburgh Pennsylvania USA
4. Providence Neurology Medford Oregon USA
5. Departments of Neurology University of Pittsburgh Medical Center Pittsburgh Pennsylvania USA
6. Pathology (Neuropathology) University of Pittsburgh Medical Center Pittsburgh Pennsylvania USA