लेखक: Sharon Weber

Timothy M. Pawlik, MD, MPH, MTS, Ph D, FACS, FRACS (Hon.) Professor and Chair, Department of Surgery The Ohio State University Wexner Medical Center Columbus, OH USA Sharon Weber, MD Professor, Dept. of Surgery University of Wisconsin School of Medicine and Public Health Madison, WI USA T. Clark Gamblin, MD, MS, MBA Professor of Surgery Medical College of Wisconsin Milwaukee, WI USA