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I am currently the Pro Vice-Chancellor and Dean of Health, and Professor of Medicine, at the University of Newcastle. I hold Adjunct Professorial appointments at Mayo Clinic, University of North Carolina and the Karolinska Institute. I was formerly Professor of Medicine and Professor of Epidemiology in the Mayo Clinic College of Medicine, Rochester, Minnesota and Jacksonville, Florida. I was also formally the Chair of the Department of Internal Medicine at Mayo Clinic Florida. I received my undergraduate and medical training at the University of New South Wales in Sydney, Ph.D. at the University of Sydney and Masters of Medical Science (Clinical Epidemiology) at the University of Newcastle in Australia. I am a gastroenterologist with a special interest in neurogastroenterology including the treatment, pathophysiology and epidemiology of functional dyspepsia and irritable bowel syndrome. I am considered an international authority in the field. I have published very extensively (over 700 papers), am a member of the Rome Foundation Board (the authority in the classification of all the functional GI disorders), edit a major journal in the field (Alimentary Pharmacology and Therapeutics), was formally the editor of the American Journal of Gastroenterology, and am the PI on an extensive portfolio of research, including until recently a large multicenter NIH funded randomized controlled trial in functional dyspepsia (UO1), and on multiple National Health and Medical Research Council project grants.