Global Ischemic Heart Disease (IHD)Drugs Market By Type (Anti-dyslipidemic Drugs , Calcium Channel Blockers , Beta-blockers , ACE Inhibitors , ARBs , Vasodilators , and Antithrombotic Agents), By Application (Stable Angina , Unstable Angina , Prinzmetal's Angina , STEMI , and NSTEMI ), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029