Cardiologists are doctors that specialize in the heart and blood vessels. Cardiologists work to prevent or mitigate the dangerous effects of heart disease and disorders such as Cardiomyopathy and Cardiac arrhythmias. Cardiologists are different from cardiac surgeons since they do not operate on the heart; cardiologists are physicians that specialize in the diagnosing and treatment of heart problems. Most hospitals and clinics employ cardiologists since heart problems are common and often fatal.
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