mechanical prosthesis,
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This clarifies it for me. No pig's valve. They don't last as long anyway.
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however there is an increase in bleeding complications."
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You know to take this seriously, don't you? I was with one of my brothers not long ago, and he scratched his arm - just an innocent scratch - and I had to take him to security. They make the decision about whether or not to call 911. They made him sit for an hour or more, applied pressure and ice, but it was very scary, welp, to me, anyway as I am afraid of EVERYTHING.
If you think education is expensive, try ignorance.