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17. More trouble for Stanford's patent. Budiansky S Nature; 1982 Aug; 298(5875):595. PubMed ID: 6954364 [TBL] [Abstract][Full Text] [Related]
18. Biotechnology advances make life hard for patent office. Schneider K N Y Times Web; 1988 Apr; ():E5. PubMed ID: 11646678 [No Abstract] [Full Text] [Related]