TY - BOOK AU - Ashutosh Kumar Au. AU - Dr. Arun Gupta Gu. AU - Dr. Nitin Agarwal Gu. AU - University of Delhi. Faculty of Medical Sciences. Department of Surgery ED - University of Delhi. Faculty of Medical Sciences. Department of Surgery TI - Development of scoring system to improve diagnostic yield of upper gastrointestinal endoscopy PY - 2012/// KW - SURGERY ER -