University Heidelberg, 1988-1994
University Munich, 1996 - 2004
University Ulm, 2004 - 2006
Heart Center Lahr, 2006 - 2007
University hospital Muenster, 2007 - 2008
University hospital Eppendorf, Hamburg, since 2/2008
tissue engineering
valve surgery
off-pump revascularization