11.   If the electrophysiologic tests show he has such a risk, then the doctors will immediately implant a device designed to slow dangerously fast heart rhythms.

12.   In his press conference, Cheney suggested that his doctors would probably implant the device regardless of which group he fell in.

13.   Pacemakers are devices that send electrical signals to heart muscles to maintain a normal rhythm of heart beats, and doctors have implanted them for nearly half a century.

14.   When the risk was affirmed, the doctors implanted a device that provides a record of every heart beat and is both a pacemaker and a defibrillator.

15.   Doctors had implanted a stent, a little metal scaffolding, to prop open an almost completely blocked coronary artery.

16.   Doctors had implanted an artery-clearing device, and they said he could be released as early as Friday.

17.   Doctors implant two crescent shapes to form a ring around the cornea, a clear window that covers the pupil and iris.

18.   Doctors implanted a stent to open the artery.

19.   Doctors implanted the pacemaker-style device to stimulate a part of his brain thought important for mood -- and that very day the man laughed.

20.   Doctors implant pacemaker.