事情发生的经过：这对夫妻本来是小剂量地使用这种致命毒素(肉毒杆菌)来治疗斗鸡眼和其他眼部肌肉疾病的，而他们却发现了药物的一些副作用。

What Happened: The couple were using small doses of a deadly toxin to treat "crossed eyes" eyelid spasms and other eye-muscle disorders when they noticed an interesting side effect。

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肉毒杆菌毒素是由芽孢梭菌肉毒菌产生的。作用原理是暂时麻痹额头的主要肌肉。

The Botulinum toxin, which is produced by the bacterium Clostridium botulinum, works by temporarily paralysing key muscles in the forehead.

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目的探讨肉毒毒素A对腭肌阵挛源性耳鸣的治疗作用。

Objective to investigate the use of botulinum toxin (BTX) a in the treatment of palatal myoclonus objective tinnitus (PMOT).

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