| Affiliation: | 1. Zablocki Veterans Affairs Medical Center, Milwaukee, Wisconsin;2. Medical College of Wisconsin, Milwaukee, Wisconsin;3. Northport Veterans Affairs Medical Center, Northport, New York;4. Eastern Colorado Healthcare System, Department of Veterans Affairs, Denver, Colorado;5. Cooperative Studies Program Coordinating Center, Veterans Affairs Medical Center, Perry Point, Maryland;6. University of Colorado School of Medicine at the Anschutz Medical Campus, Aurora, Colorado;g Greater Los Angeles Veterans Affairs Medical Center, Los Angeles, California |
