Other
Story md.com: Cardiovascular Risk Factors: Ldl/hdl Ratio
Under certain conditions, the risk of developing coronary heart disease (strokes, heart attack) cannot be properly assessed only by looking at a person's lipids test results. In these cases, the LDL "bad cholesterol" to HDL "good...
CK-12 Foundation
Ck 12: Life Science: 11.29 Cardiovascular Diseases
Discover how cardiovascular disease can be dangerous to human health.
Other
Cardiothoracic Surgery of Savannah: Heart Murmurs
Information about heart murmurs and other problems with the heart valves. Gives good illustrations and audio examples of different kinds of heart murmurs.
University of Washington
University of Washington: After Your Heart Attack
This site offers information on how to recognize and prevent a heart attack.