1. Departments of Medicine (W.X., A.J.K., M.X., K.K.-V., S.P.C., M.E.W.), University of Colorado School of Medicine, Aurora, Colorado 80045
2. Research Service (K.K.-V., M.E.W.), Veterans Affairs Medical Center, Denver, Colorado 80220
3. Anesthesiology (K.S.B.), University of Colorado School of Medicine, Aurora, Colorado 80045
4. Pathology (B.K.K.-D.), University of Colorado School of Medicine, Aurora, Colorado 80045
5. Neurosurgery (K.O.L.), University of Colorado School of Medicine, Aurora, Colorado 80045