University of Alabama at Birmingham

Professor of Pediatrics, University Medical Center Groningen

Virginia commonwealth University

Emeritus Professor of Clinical Pharmacology and Hepatology, University of Sydney

Professor of Medicine and Genetics, Albert Einstein College of Medicine

professor in Food Chemistry and Applied Nutrition

Research officer, UMCG, Retired

University of Southern California, Children's Hospital of Los Angeles

Professor Pharmacology and Toxicology, Medical Faculty, University of Novi Sad, Serbia

retired