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Heart disease - Symptoms and causes - Mayo Clinic
Heart Disease: Types, Causes, and Symptoms - WebMD
Heart Disease | cdc.gov
Heart Disease Facts | cdc.gov
What is Cardiovascular Disease? | American Heart Association
Heart Disease: Risk Factors, Prevention, and More - Healthline
Heart Disease: Symptoms & Causes - Cleveland Clinic
About Heart Disease | cdc.gov
Heart disease - Diagnosis and treatment - Mayo Clinic
Coronary artery disease - Symptoms and causes - Mayo Clinic