Revised Article-Heart Valve Disease

Heart valve disease occurs if one or more of your heart valves don't work well. The heart has four valves: the tricuspid, pulmonary, mitral, and aortic valves.

Source: http://www.nhlbi.nih.gov/health/health-topics/topics/hvd/

Carrie Underwood Cat Power Catherine Bell Chandra West Charisma Carpenter