No abstract available
MeSH terms
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Chlamydia trachomatis / isolation & purification*
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Diagnosis, Differential
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Homosexuality, Male*
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Humans
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Lymphogranuloma Venereum / diagnosis*
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Lymphogranuloma Venereum / microbiology
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Male
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Middle Aged
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Proctitis / diagnosis*
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Proctitis / microbiology
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Rectum / microbiology
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Rectum / pathology*
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Sigmoidoscopy