Z Abdel Hamid

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The changes in the rectal neck (anal canal) pressure and electromyography (EMG) of the external anal sphincter and levator ani muscle were studied in 20 dogs before and after internal anal sphincter excision by 2 weeks and monthly up to 10 months. The rectal neck pressure dropped to 41% of the preoperative level. It was then gradually elevated from the(More)
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