artificial pacemaker造句怎麼寫
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His findings led to the artificial pacemaker and, in the 1980s, the implantable defibrillator, spawning the multibillion dollar "heart-rhythm management" industry.
Fitting the body of an artificial pacemaker is fairly easy. Fitting the leads, though, can be tricky; impossible, even, in some patients.
MILLIONS of people around the world benefit from having artificial pacemakers implanted into their chests, to help restore a normal heartbeat.
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