Stepped-care therapy for angina pectoris?
D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use*; D000787:Angina Pectoris / Q000188:drug therapy* / Q000209:etiology; D002121:Calcium Channel Blockers / Q000627:therapeutic use*; D006439:Hemodynamics / Q000187:drug effects; D006801:Humans; D009566:Nitrates / Q000009:adverse effects / Q000627:therapeutic use*
D000319:Adrenergic beta-Antagonists; D002121:Calcium Channel Blockers; D009566:Nitrates