title: [Double blind study with verapamil and placebo. Therapeutic assay. Exertion test].
mesh_terms: D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000188:drug therapy*; D004311:Double-Blind Method; D004341:Drug Evaluation; D005080:Exercise Test; D005260:Female; D006321:Heart / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D010919:Placebos; D014700:Verapamil / Q000494:pharmacology / Q000627:therapeutic use*
chemical_list: D010919:Placebos; D014700:Verapamil
vernacular_title: Estudio doble ciego con verapamil y placebo. ensayo terapéutico. Tolerancia al esfuerzo.