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The transplant took seven hours. Doctors needed
from U.S. authorities for the surgery. Scientists have been researching pig-organ
for many
. Mr Bennett's transplant could mean more transplants in the
. It could bring the world, "one step closer to solving the
shortage crisis". His doctor said: "We are also
that this first-in-the-world surgery will provide an
new option for
in the future." Mr Bennett hopes his transplant will let him live
. He said: "I look forward to getting out of
after I recover."