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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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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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Enkephalin derivatives
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Patent number 4,404,135
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Issue date Sep 13, 1983
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G. D. Searle & Co.
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David A. Jones
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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2 AND 3-SUBSTITUTED ENKEPHALINS
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Patent number 4,028,319
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Issue date Jun 7, 1977
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G. D. Searle & Co.
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David A. Jones
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE