No abstract available
MeSH terms
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Anti-Bacterial Agents / therapeutic use
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Biopsy
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Colonoscopy
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Diagnosis, Differential
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Homosexuality, Male
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Humans
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Immunohistochemistry
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Magnetic Resonance Imaging
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Male
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Middle Aged
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Pain / microbiology
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Penicillin G / therapeutic use
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Predictive Value of Tests
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Proctitis / microbiology
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Rectal Diseases / diagnosis*
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Rectal Diseases / drug therapy
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Rectal Diseases / microbiology
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Rectal Neoplasms / diagnosis*
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Syphilis / diagnosis*
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Syphilis / drug therapy
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Syphilis / microbiology
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Treatment Outcome
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Treponema pallidum / isolation & purification*
Substances
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Anti-Bacterial Agents
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Penicillin G