180
Participants
Start Date
February 28, 2006
Primary Completion Date
December 31, 2008
Study Completion Date
December 31, 2008
nasogastric tube
insertion of nasogastric tube for 2 days after operation
without nasogastric tube
without nasogastric tube after operation
Second Department of Surgery, Wakayama Medical University, Wakayama
Wakayama Medical University
OTHER