title: [Clinical trial of the new beta-blockader atenolol].
mesh_terms: D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000188:drug therapy*; D001262:Atenolol / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D004341:Drug Evaluation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010919:Placebos; D011412:Propanolamines / Q000627:therapeutic use*
chemical_list: D010919:Placebos; D011412:Propanolamines; D001262:Atenolol
vernacular_title: Ensayo clínico del nuevo betabloqueante atenolol.