Clinical application of flexible endoscope assisted by pillow-under-shoulder in patients with difficult airway
LI Huanzhen, DING Haoyue, ZHAO Baojian, LI Gang, FANG Fangfang, DONG Yingchun
Journal of Jilin University(Medicine Edition) . 2017, (04): 818 -821 .  DOI: 10.13481/j.1671-587x.20170429