title: Some critical notes on the use and effectiveness of biofeedback. Part 2.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000628:therapy; D001676:Biofeedback, Psychology; D006261:Headache / Q000628:therapy; D006801:Humans; D006973:Hypertension / Q000628:therapy; D008881:Migraine Disorders / Q000628:therapy; D011928:Raynaud Disease / Q000628:therapy