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The purpose of these experiments was to compare the spread of three formulations of botulinum neurotoxin A. A gelatin/phosphate buffer (C), DysportR (D {0.5 U}, BotoxR (B {0.167 U}), or a purified preparation of botulinum neurotoxin A [Bont A] (BA {0.5 U}) was injected into the tibialis anterior of male, Wistar rats. After 4 days, the adjacent extensor(More)
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