The Mass and Mass-II trials directly compared the effect of medical therapy,<unk>  and<unk>  for the management of chronic stable<unk> . However, there are a few reservations to the application of results from these studies as they did not include the current optimal strategies of therapy.
Chronic stable angina PCI and CABG versus medical therapy
Chronic stable angina coronary artery bypass grafting versus medical therapy
Chronic stable angina percutaneous coronary intervention versus medical therapy
Chronic stable angina percutaneous coronary intervention versus coronary artery bypass grafting
Chronic stable angina revascularization coronary artery bypass grafting
Chronic stable angina treatment angiotensin converting enzyme inhibitors 
Chronic stable angina revascularization percutaneous coronary intervention
Chronic stable angina treatment anti-lipid agents