115 Surgery vs botulinum for the impact of drooling on daily life in children with neurodevelopmental disabilities: a randomized controlled trial 5 Figure 1: Median reduction in drooling severity 8 and 32 weeks after treatment. BoNT-A, botulinum neurotoxin type A; 2-DL, bilateral submandibular duct ligation; * indicates statistical significance between baseline and 8 weeks follow-up (p = <0.05); ** indicates statistical significance between baseline and 32 weeks follow-up (p = <0.05).
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