Duke University, Durham, NC (AB 1960)
Duke University, Durham, NC (MD 1964)
Duke University Medical Center, Durham, NC (General Surgical Training 1964-66)
University of Colorado HSC, Denver, CO (General & Cardiothoracic Surgery Training 1966-70)
US Naval Hospital, San Diego, CA (1970-72)
Univ .of Texas Health Science Center at San Antonio (1972-91)
Prof. & Head, Div of Cardiothoracic Surgery, University of Colorado HSC (1991 - 2003)
Professor & Interim Chair, Dept of Surgery, University of Colorado HSC (2001-02)
Professor & Chair, Dept of Surgery, University of Colorado Denver (2002 - 2012)
Professor of Surgery, Div of CT Surgery, Univ of Colorado (2012-present)