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Tags: germ, industry, microscopic view, spirochete, syphilis, worker
Tags: arm, blood test, court, education, employee, employer, industry, infographic, lock, overalls, pictorial statistic, prostitution, quack, recreation, sports
Tags: city, community, house, industry, skyscraper, smokestack, syphilis
Tags: gun, health, industry, machine, patriotism, serviceman, woman, worker
Tags: arm, blood test, employee, industry, physician, smokestack, syphilis, syringe, worker
Tags: community, education, health, industry, infographic, pictorial statistic