Doctors at the University of Maryland Medical Center successfully replaced the heart of a very sick man with a genetically modified pig’s heart. It’s the first time this surgery has ever been done. After three days, the patient appears to be doing very well. “It’s working and it looks normal,” said Dr. Bartley Griffith, the surgeon who performed the operation. “We are thrilled, but we don’t know what tomorrow will bring us. This has never been done before.”David Bennett, who’s 57, is the man who was given the new heart. He was given special permission to have the unusual operation because without it, he would have died. “It was either die or do this transplant,” said Mr. Bennett. “I want to live.”
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