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Operator Methods in Quantum Mechanics Hypertension Atherosclerosis Myocardial Infarction Coronary Thrombosis STEMI Myocarditis Stenosis Regurgitation arrhythmias syncope cardiomyopathy congenital circulatory defect adult electrophysiologybr The brain's emotion and immuneQuantum mechanical problems capable of exact solution are traditionally solved in a few instances only (such as the harmonic oscillator and angular momentum) by operator methods, but mainly by means of Schrodinger's wave mechanics. The present volume shows that a large range of one and three dimensional problems, including certain relativistic ones, are solvable by algebraic, representation independent methods using commutation relations, shift