| Authors: |
Waddell KJ; Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA; Department of Physical Medicine and Rehabilitation, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA; Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA. Electronic address: Kimberly.Waddell@pennmedicine.upenn.edu., Mani A; Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA., Roberts CB; Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA., Benson J; Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA., Burke RE; Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA; Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA; Divisions of Hospital Medicine and General Internal Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA; Division of General Internal Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA. |