Assertion: botulinum toxin's effect | /r/CapableOf | injections target tongue muscles
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Source sentences:
text: Adverse effects can limit optimal treatment, in particular, dysphagia, in patients receiving bilateral injections of sternocleidomastoid or longus colli, when there are pre-existing swallowing difficulties11 or in craniocervical dystonia when injections target both neck and tongue muscles.