80
Participants
Start Date
May 31, 2016
Primary Completion Date
July 31, 2016
Study Completion Date
July 31, 2016
dezocine
receive dezocine 0.1 mg/kg
normal saline
receive matching placebo (equal volume of normal saline)
General Hospital of Ningxia Medical University, Yinchuan
General Hospital of Ningxia Medical University
OTHER