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The three co-winners of the 1968 Nobel prize for medicine attend the reception at the United States Embassy in Stockholm, December 8, 1968. From left Professor Robert W. Holley of Cornell University, Ithaca, N.Y.; Dr. Marshall W. Nirenberg of National Heart Institute, Bethesda, Md.; and Professor Har Gobind Khorana of University of Wisconsin, Madison, Wis. The biochemists will share the $70,000 prize which will be presented Tuesday, for their research in deciphering the genetic-hereditary-code. (KEYSTONE/AP Photo)