Icahn School of Medicine at Mount Sinai and the Mount Sinai Hospital, New York

Professor university of Pittsburgh

Professor of Cardiac Surgery, Università Vita Salute, Milano

Department of Biomedical and Clinical Sciences DIBIC | Università degli Studi di Milano

Professor cardiac surgery, stanford university

Clinical Professor of Surgery,University of North Carolina; Chairman Emeritus Thoracic and

Cardiovascular Surgery, Nihon University School of Medicine

Professor of Veterinary Pathology, Federal University of Goias, Brazil

Libyan International Medical University - LIMU

Professor of Surgery