title: Comparison of verapamil and nifedipine in chronic stable angina pectoris.
mesh_terms: D000787:Angina Pectoris / Q000188:drug therapy*; D006801:Humans; D009543:Nifedipine / Q000008:administration & dosage*; D011725:Pyridines / Q000008:administration & dosage*; D014700:Verapamil / Q000008:administration & dosage*
chemical_list: D011725:Pyridines; D014700:Verapamil; D009543:Nifedipine