[1
]
Division of Vascular Surgery, Department of Surgery, University of Maryland School
of Medicine and the Baltimore Veterans Affairs Medical Center, Baltimore, Md. Electronic
address: blal@smail.umaryland.edu.
[2
]
Division of Vascular Surgery, Department of Surgery, Stanford University and Veterans
Affairs Palo Alto Health Care System, Palo Alto, Calif.
[3
]
Yale University Cancer Center, New Haven, Conn; Veterans Affairs Cooperative Studies
Program Coordinating Center, Veterans Affairs Medical Center, West Haven, Conn.
[4
]
Veterans Affairs Cooperative Studies Program Coordinating Center, Veterans Affairs
Medical Center, West Haven, Conn.
[5
]
Division of Vascular Surgery, Department of Surgery, University of Wisconsin School
of Medicine and Public Health, Madison, Wisc.
[6
]
Department of Medicine, Veterans Affairs Health Care System, Minneapolis, Minn.
[7
]
Division of Vascular Surgery, Department of Surgery, University of California-Davis,
Sacramento, Calif.