OASIS GLOBAL, Inc. and the University of Cincinnati

University of Oklahoma

Professor of Surgery, Medical University of South Carolina

Feinstein Institutes for Medical Research, Northwell Health

National and Kapodistrian University of Athens

Hospital Universitario La Paz

MD, PhD, FACS, Professor of surgery, Faculty of Medicine, University of Tuzla.

Stanford University, Centers for Disease Control and Prevention

Alfa Institute of Biomedical Sciences, Athens, Greece

Academic Scholar, 2nd Department of Surgery, Aristotle University of Thessaloniki, Greece