Ciarrocchi, G., M. D’anzeo, L. Butini, G. Brandozzi, D. Drenaggi, and M. Simeone. “Pros and Cons of Serological Testing in Syphilis Diagnosis and Follow up”. Microbiologia Medica, Vol. 25, no. 1, Mar. 2010, doi:10.4081/mm.2010.2476.