1.   He was given an artificial heart.

2.   Only one person has survived an operation to implant an artificial heart.

3.   The prospect of artificial hearts replacing reliance on cadaver hearts is already in sight.

4.   Although heart transplants are still considered preferable, the artificial hearts have some potential advantages.

5.   Although Gray vowed to minimize publicity about the AbioCor artificial heart, he said he was aware that it would not be easy.

6.   An artificial heart made by Abiomed of Danvers, Mass. has won US Food and Drug Administration approval for a limited run of tests.

7.   An artificial heart made of shiny metal and intricate swirls of plastic could pass for a sinisterly futuristic sculpture.

8.   Artificial hearts will not be the treatment of choice for all cardiac patients, but they could add an important tool to the armamentarium of cardiologists.

9.   Artificial heart valves, metal and plastic.