Dr. Paul "Skip" Hayashi serves as Associate Director, Drug Induced Liver Injury, Division of Hepatology and Nutrition Center for Drug Evaluation and Research, US Food and Drug Administration. He previously was a Professor of Medicine and Medical Director of Liver Transplantation at the University of North Carolina, Chapel Hill, USA. He is considered an authority in DILI, especially in causality attribution and mortality from DILI and its regulatory aspects.