title: Preliminary observations on a new non-drug method for control of hypertension.
mesh_terms: D000328:Adult; D001676:Biofeedback, Psychology; D005260:Female; D006801:Humans; D006973:Hypertension / Q000517:prevention & control / Q000523:psychology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D013997:Time Factors