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Dr. Sanjay Gupta Reports: Animal Pharm

Xenotransplantation, or transplanting animal organs into humans, could be on the precipice of a breakthrough, and Dr. Gupta is speaking with the doctors, geneticists and ethicists on the cutting edge of this groundbreaking research. Dr. Gupta follows the journeys of patients making medical history as some of the first people in the world to receive gene-edited pig kidneys, including an extraordinary look inside the operating room during these historic procedures.

• Documentary