1. Veterans Affairs San Diego Healthcare System, San Diego California2Department of Medicine, University of California, San Diego
2. Minneapolis Heart Institute, Minneapolis, Minnesota
3. Minneapolis Heart Institute, Minneapolis, Minnesota4now with Cedars Sinai Heart Institute, Los Angeles, California
4. Department of Medicine, University of Vermont, Burlington
5. Department of Medicine, Northwestern University, Chicago, Illinois
6. Department of Medicine, University of California, San Diego
7. Department of Medicine, University of Utah, Salt Lake City
8. Department of Medicine, University of Wisconsin, Madison
9. Department of Biostatistics, UCLA (University of California at Los Angeles)
10. Veterans Affairs San Diego Healthcare System, San Diego California2Department of Medicine, University of California, San Diego10now with School of Medicine, Stanford University, Palo Alto, California