Professor of Gastroenterology, Newcastle University; Consultant Gastroenterologist …

University of Tasmania

Iowa State University

Professor of Pediatrics and Child Health, University of Manitoba, Winnipeg, Canada

St Jude Children's Research Hospital

College of Veterinary Medicine, Seoul National University

Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine

Assistant Dean of Research at California Northstate University

Kuwait University

Professor of Florida Atlanctic University College of Medicine (retired)