No abstract available
MeSH terms
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Actins / metabolism
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Action Potentials
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Adenosine Triphosphate / metabolism
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Adult
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Aged
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Animals
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Biopsy
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Calcium / metabolism
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Electric Stimulation
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Electromyography
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Factor Analysis, Statistical
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Guinea Pigs
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Heart / physiology
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Humans
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In Vitro Techniques
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Ion Exchange
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Methods
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Middle Aged
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Models, Biological
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Muscle Contraction
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Myocardium / analysis
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Myocardium / metabolism*
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Myosins / metabolism
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Papillary Muscles / physiology
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Potassium / metabolism
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Rats
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Sodium / metabolism
Substances
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Actins
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Adenosine Triphosphate
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Sodium
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Myosins
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Potassium
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Calcium