Scientists Grow More Hopeful About Ending a Global Organ Shortage

At an international conference, researchers at the forefront of animal-human transplantation compared notes and allowed themselves the first real optimism in decades.

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Pig Kidney Removed From Transplant Patient After Nine Months

Tim Andrews, 67, lived with a genetically modified organ longer than any other recipient.

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For Patients Needing Transplants, Hope Arrives on Tiny Hooves

Some scientists are confident that organs from genetically modified pigs will one day be routinely transplanted into humans. But substantial ethical questions remain.

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