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Dr. William Ganz, noted cardiologist, dies Nov. 13: Dr. William Ganz, co-inventor of the balloon-tipped catheter that measures heart blood flow, died Tuesday. He was 90. NBC's Brian Williams reports. Nightly News |
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Dr. William Ganz, noted cardiologist, dies Nov. 13: Dr. William Ganz, co-inventor of the balloon-tipped catheter that measures heart blood flow, died Tuesday. He was 90. NBC's Brian Williams reports. Nightly News |