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| Cingulate |
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| motor |
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| area |
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| 1° motor |
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| cortex |
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| Upper facial |
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| muscles |
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| Upper facial |
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| muscles |
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| Upper |
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| facial |
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| muscles |
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| Lower facial |
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| muscles |
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| 1. | Bilateral
control of upper facial muscles |
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| 2. Redundant control of upper facial muscles |
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