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It also takes pictures of the heart valves and vessels.

You may not know what a heart valve is - until it stops working right.

The heart valve has been said to have caused hundreds of deaths.

With a large number of bacteria, even a normal heart valve may become infected.

This risk is even greater in people with damaged heart valves.

The heart valves are a part of the human body that does not get blood.

The company has recently come under pressure because of problems with defects in a heart valve it makes.

"The amount of public information on the heart valve is staggering."

There was not a greater risk here than in other heart valves.

Look at the heart valves and check how well they work.