Mortal Fear Paperback – February 1, 1989 by Robin Cook 
 
A harrowing medical nightmare on the cutting edge of genetic research, Mortal Fear goes into the controversial future of modern medicine. At a large Boston clinic, a world-class biologist stumbles upon a miraculous discovery, a major scientific breakthrough. Soon, healthy, middle-aged patients are dying of old age. And the ultimate experiment in terror begins...
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