1 Departments of Surgery, Divisions of Cardiothoracic Surgery, St. Louis, MO; Public Health Sciences, St. Louis, MO. Electronic address: bheiden@wustl.edu.
2 Department of Psychiatry, St. Louis, MO; Alvin J. Siteman Cancer Center at Barnes-Jewish Hospital, Washington University School of Medicine, St. Louis, MO.
3 Departments of Surgery, Divisions of Cardiothoracic Surgery, St. Louis, MO; VA St. Louis Health Care System, St. Louis, MO.