Oral Delta-9-Tetrahydrocannabinol (THC) Increases Parasympathetic Activity and Supraspinal Conditioned Pain Modulation in Chronic Neuropathic Pain Male Patients: A Crossover, Double-Blind, Placebo-Controlled Trial

口服Δ-9-四氢大麻酚（THC）可增强慢性神经性疼痛男性患者的副交感神经活性和脊髓上条件性疼痛调节：一项交叉、双盲、安慰剂对照试验