1. From University of Colorado, Denver, Colorado; Duke University, Durham, North Carolina; Mayo Clinic, Rochester, Minnesota; University of California, Los Angeles, Los Angeles, California; University of Maryland and Johns Hopkins University, Baltimore, Maryland; Rush-Presbyterian Medical Center, Chicago, Illinois; Columbia-Presbyterian Medical Center, New York, New York; Glaxo Wellcome, Inc., Research Triangle Park, North Carolina; Vanderbilt University, Nashville, Tennessee;
2. University of Pittsburgh, Pittsburgh, Pennsylvania; Baylor College of Medicine, Houston, Texas; Wayne State University, Detroit, Michigan; University of Alabama, Birmingham, Alabama; University of Washington, Seattle, Washington; LDS Hospital, Salt Lake City, Utah; Brown University, Providence, Rhode Island; McGill University, Montreal, Quebec, Canada; The Cleveland Clinic, Cleveland, Ohio; and Harbor-UCLA Medical Center, Torrance, California.