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M. von Frey and M. Gruber (Leipzig) build and use the first artificial heart-lung apparatus for organ perfusion studies. Their device relies on a thin film of blood and included heating and cooling chambers, manometers, and sampling outlets, which permits monitoring of temperature, pressure, and blood gases during perfusion.
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G. Haas (Germany) performs first clinical hemodialysis of 5 patients, using a modification of the Hopkins artificial kidney.
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Heparin is used for the first time in human patients by Gordon Murray of Toronto.
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The first successful kidney transplant in unrelated humans is performed by Joseph Murray of Boston
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