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Polypeptide
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Patent number 4,707,468
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Issue date Nov 17, 1987
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Eisai Co., Ltd.
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Hiroshi Yoshino
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Enkephalin analogs
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Patent number 4,603,121
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Issue date Jul 29, 1986
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G. D. Searle & Co.
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Donald W. Hansen
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C07 - ORGANIC CHEMISTRY
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Therapeutic compounds
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Patent number 4,496,540
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Issue date Jan 29, 1985
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Biomeasure, Inc.
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Sun K. Kim
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Enkephalin analogs
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Patent number 4,495,178
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Issue date Jan 22, 1985
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G. D. Searle & Co.
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Donald W. Hansen
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C07 - ORGANIC CHEMISTRY
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-
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Aminoacyl derivatives
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Patent number 4,421,744
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Issue date Dec 20, 1983
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Imperial Chemical Industries PLC
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James J. Gormley
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE