The FDA and leading cardiologists are warning that aortic heart valves from animal tissue can develop tiny blood clots, a surprising finding given the tissue valves have been used for three decades.
WSJ.com US News, Wall Street Journal
Mon, 10/05/2015 - 7:18pm
The FDA and leading cardiologists are warning that aortic heart valves from animal tissue can develop tiny blood clots, a surprising finding given the tissue valves have been used for three decades.