Affiliation: | a University of Alabama at Birmingham, Birmingham, Alabama b VA Medical Center, Birmingham, Alabama c Medical University of Lodz, Lodz, Poland d Case Western Reserve University, Cleveland, Ohio e Montreal Heart Institute, Montreal, Quebec, Canada f University of California, Los Angeles, California g VA Central California Health Care System, Fresno, California h University of California-San Francisco, Fresno, California i New York Medical College, Valhalla, New York |