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Description:A chain of custody, in which evidence is in the possession of an identified person at all times, must be maintained. Thus, specimens are placed in individual packages, labeled, dated, sealed, and held until delivery to another person typically, law enforcement or laboratory personnel , who signs a receipt. Other method also exist including: There is much debate as to whether persistence has in vivo relevance. Colposcopy is particularly sensitive for subtle genital injuries. It can occur in both sexes, though is more common in men. Guidelines recommend azithromycin , doxycycline , erythromycin , levofloxacin or ofloxacin.

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