Assertion: head tremor | /r/CapableOf | resolve looking in one direction
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Source sentences:
text: If the head tremor resolves looking in one direction, that is the null point of the tremor and suggests that the tremor is caused by cervical dystonia pulling the head one direction but the patient’s natural inclination to straighten/resist this pulling leads to an agonist/antagonist muscle battle which manifests as tremor.