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English
[en]
399 were found to have syphilis, and they formed the study group, 200 without syphilis served as controls.
Korean
[ko]
399명은 매독에 감염되어 있었으며, 그들은 조작 변인 조가 되었습니다. 매독에 감염되어 있지 않았던 200명은
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