Nicholas J. Talley & Kenneth R. DeVault 
Practical Gastroenterology and Hepatology Board Review Toolkit [PDF ebook] 

Editor-in-Chief: Nicholas J. Talley, MD, Ph D, is a nationally and internationally recognized clinical gastroenterologist and researcher with a special interest in neurogastroenterology and gastrointestinal epidemiology. He is Pro Vice-Chancellor (and Professor) and Dean (Health) at the University of Newcastle, Australia, but also holds appointments as Adjunct Professor and Consultant Gastroenterologist at the Mayo Clinic, Rochester, US, and Adjunct Professor at University of North Carolina. He was previously Chair of the Department of Medicine at Mayo Clinic Florida. Dr Talley is a previous Editor-in-Chief of the American Journal of Gastroenterology.