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Walk the evidence base by book and chapter — the raw source passages that ground Ask, Differential, and the rest.

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contentuptodate· Content· item f30_45_31443

©2013 UpToDate ® Print Email Penile blood flow in erection Cross-section of corpora cavernosae illustrating penile blood flow in the flaccid and erect state. As intracavernosal pressure rises, emissary veins are occluded to maintain erectile function.