Affiliation: | 1. Department of Critical Care Medicine, Mayo Clinic, Jacksonville, Florida;2. Department of Neurosurgery, Mayo Clinic, Jacksonville, Florida;3. Department of Anesthesiology, Mayo Clinic, Jacksonville, Florida;4. Division of Pulmonary Medicine, Mayo Clinic, Jacksonville, Florida;5. Department of Cardiology, Mayo Clinic, Phoenix, Arizona;6. Department of Cardiology, Mayo Clinic, Jacksonville, Florida;7. Department of Anesthesiology, Mayo Clinic, Phoenix, Arizona |