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Since the introduction of antibiotics venereal diseases have become a secondary problem in most countries. In France the incidence of recent syphilis is ten times lower than it was 10 years ago, gonorrhoea is twice as low, and soft sore and benign lymphogranuloma have almost disappeared. Non- gonococcal urethritis, however, is more and more in evidence.
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P Durel (1956) studied this question.
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