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2. 2 Kolff WJ. De Kunstmatige Nier. MD thesis. Univeristy Gronningen, the Netherlands, Kampen, JH Kok NV 1946.
3. Development of an artifcial kidney;Murray,1947
4. Canulation of blood vessels for prolonged hemodialysis;Quinton,1960
5. Development of a parallel flow artificial kidney in plastics;Kiil,1960