Comparison of the effect of different degrees of passive leg raising on the internal jugular vein cross-sectional area in patients before thoracic surgery.
Shouyu XieQimeng YuTingting LiMeiying XuJingxiang WuYanting LiPublished in: BMC anesthesiology (2019)
Clinical trial registration number: ChiCTR1800015051 . Date of registration: March 2018.