Subject is exactly Placebo
Effects of Transcutaneous Electrical Acupoint Stimulation on Patients with Stable Chronic Obstructive Pulmonary Disease: A Prospective, Single-Blind, Randomized, Placebo-Controlled StudyLiu, X.
Comparison of the placebo effect between different non-penetrating acupuncture devices and real acupuncture in healthy subjects: a randomized clinical trialDos Santos Maciel, L.Y.
Acupuncture versus placebo versus sumatriptan for early treatment of migraine attacks: a randomized controlled trialMelchart, D.
Acupuncture for cancer-related fatigue in lung cancer patients: a randomized, double blind, placebo-controlled pilot trialCheng, C.-S.