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Rothblatt, left, and the team at United Therapeutics’ Organ Manufacturing Group in Manchester, N.H., holding a lung they are able to 3D-print from human collagen fiber grown in genetically modified tobacco plants with the help of Texas A&M University (Pho

Rothblatt, left, and the team at United Therapeutics’ Organ Manufacturing Group in Manchester, N.H., holding a lung they are able to 3D-print from human collagen fiber grown in genetically modified tobacco plants with the help of Texas A&M University (Photo Courtesy of United Therapeutics).

Rothblatt, left, and the team at United Therapeutics’ Organ Manufacturing Group in Manchester, N.H., holding a lung they are able to 3D-print from human collagen fiber grown in genetically modified tobacco plants with the help of Texas A&M University (Photo Courtesy of United Therapeutics).

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