Anesthetic effect of different doses of butorphanol in patients undergoing gastroscopy and colonoscopy

This study aimed to investigate the anesthetic effect of butorphanol with different doses in patients undergoing gastroscopy and colonoscopy.

Source: BMC Surgery - May 27, 2021 Category: Surgery Authors: Shun Lv, Defeng Sun, Jinglin Li, Lin Yang, Zhongliang Sun and Yan Feng Tags: Research Source Type: research