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Boston Scientific, Medtronic and St. Jude in high-stakes heart-valve race

[Star Tribune, March 15, 2015] An 85-year-old Minneapolis woman lies on the operating room table at Abbott Northwestern ­Hospital and waits for the future of heart valve medicine. The diseased aortic valve in Anna Schu’s chest is threatening her health, but she’s not a good candidate for open-heart surgery. So she’s decided to have an […]