1. Center for Innovation to Implementation, VA Palo Alto Health Care System, Palo Alto, California
2. Department of Orthopedic Surgery, Stanford University, Stanford, California
3. Center for Biomedical Informatics Research, Stanford University, Stanford, California
4. Department of Computer Science, Stanford University, Stanford, California
5. Department of Bioengineering, Stanford University, Stanford, California
6. Department of Surgery, Stanford University, Stanford, California