No abstract available
MeSH terms
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Acetylcholine / pharmacology
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Action Potentials
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Animals
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Anura
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Calcium / metabolism
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Cats
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Dinitrophenols / pharmacology
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Electric Stimulation
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Epinephrine / pharmacology
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Guinea Pigs
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Heart Function Tests
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Heart Rate
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Hypertonic Solutions
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Magnesium / metabolism
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Muscle Contraction
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Papillary Muscles / physiology*
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Temperature
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Turtles
Substances
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Dinitrophenols
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Hypertonic Solutions
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Magnesium
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Acetylcholine
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Calcium
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Epinephrine