Funding for this research was provided by:
Instituto de Pesquisa Translacional em Saúde e Ambiente na Região Amazônica (152300410007)
Molecular epidemiological study of early syphilis (162102310244)
Received: 23 July 2018
Accepted: 6 January 2019
First Online: 8 February 2019
Ethics approval and consent to participate
: Our study was ratified by Ethical and Scientific Committees of Luoyang Central Hospital Affiliated to Zhengzhou University.
: Not applicable.
: The authors declare that they have no competing interests.
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