1. ECDC. Annual epidemiological report for 2017. Syphilis. Stockholm, European Centre for Disease Prevention and Control. 2019.
2. RIVM-CIb-EPI. Sexually transmitted infections in the Netherlands in 2018. National Institute for Public Health and the Environment, RIVM, 2019.
3. Advances in the diagnosis of endemic treponematoses: yaws, bejel, and pinta;O Mitja;PLoS Negl Trop Dis,2013
4. The endemic treponematoses;L Giacani;Clin Microbiol Rev,2014
5. Endemic treponemal diseases;M Marks;Trans R Soc Trop Med Hyg,2014