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| anal sinus (sinus rectalis); rectal sinus (sinus rectalis); Morgagni's rectal crypt (sinus rectalis); sinus of Morgagni (sinus rectalis); Ball's valve (sinus rectalis) | |||
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| anal sinus (sinus rectalis); rectal sinus (sinus rectalis); Morgagni's rectal crypt (sinus rectalis); sinus of Morgagni (sinus rectalis); Ball's valve (sinus rectalis) | |||
