1. Department of Orthopaedic Surgery Stanford Hospital and Clinics Redwood City California
2. Department of Physiology Albert Einstein College of Medicine New York New York
3. Department of Biophysics, Neuroscience, and Medicine Albert Einstein College of Medicine New York New York
4. Department of Medicine University of Pennsylvania School of Medicine Philadelphia Pennsylvania
5. Department of Systems Pharmacology and Translational Therapeutics University of Pennsylvania School of Medicine Philadelphia Pennsylvania