No abstract available
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Delayed-Action Preparations*
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Methacrylates / administration & dosage*
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Metoprolol / administration & dosage
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Microscopy, Electron, Scanning
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Microspheres
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Polyvinyls / administration & dosage*
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Quaternary Ammonium Compounds / administration & dosage*
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Verapamil / administration & dosage
Substances
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3-dimethyl(methacryloyloxyethyl)ammonium propane sulfonate
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Delayed-Action Preparations
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Methacrylates
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Polyvinyls
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Quaternary Ammonium Compounds
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polyvinyl acetate
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Verapamil
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Metoprolol