1 Duke University Medical Center, Division of Cardiology, Duke Heart and Vascular, Durham, North Carolina. Electronic address: dktrigoboff@yahoo.com.
2 Critical Care Administration, Franciscan Health-Michigan City, Michigan City, Indiana.
3 Department of Vascular Surgery, Hospital of The University of Pennsylvania, Philadelphia, Pennsylvania.
4 The Vascular Group, PLLC, Albany Medical Center Hospital, Albany, New York.
5 Corporal Michael Crescenz VA Hospital, Philadelphia, Pennsylvania.
6 Minneapolis VA Health Care System, Minneapolis, Minnesota.
7 National Institutes of Health's National Center for Advancing Translational Sciences, University of Minnesota School of Nursing, Minneapolis, Minnesota.
8 Nursing Research for Improved Care, University of Minnesota School of Nursing, Minneapolis, Minnesota.