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Submission + - Heart valve grown from stem cells

craigavonite writes: British scientists have grown part of a human heart from stem cells for the first time. Heart surgeon Sir Magdi Yacoub, who led the team, said doctors could be using artificially grown heart components in transplants within three years — BBC News

"If there isn't a population problem, why is the government putting cancer in the cigarettes?" -- the elder Steptoe, c. 1970