Stellate ganglion block: normal saline as placebo.
Day
F J
FJ
D001340:Autonomic Nerve Block / Q000379:methods*; D006801:Humans; D010919:Placebos; D012965:Sodium Chloride / Q000008:administration & dosage*; D013233:Stellate Ganglion
D010919:Placebos; D012965:Sodium Chloride