1 Scheunemann: Divisions of Geriatric Medicine and Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh; Girard: Department of Critical Care Medicine, University of Pittsburgh; Skidmore: Department of Occupational Therapy, University of Pittsburgh; Resnick: Division of Geriatric Medicine, University of Pittsburgh. Electronic address: scheunemannlp@upmc.edu.
2 Scheunemann: Divisions of Geriatric Medicine and Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh; Girard: Department of Critical Care Medicine, University of Pittsburgh; Skidmore: Department of Occupational Therapy, University of Pittsburgh; Resnick: Division of Geriatric Medicine, University of Pittsburgh.