Galli, C., P. Petasecca, and GISSIL -. “VALUTAZIONE DI UN TEST AUTOMATIZZATO PER ANTICORPI ANTI- T. PALLIDUM E SIEROPREVALENZA IN ITALIA”. Microbiologia Medica 22, no. 3 (September 30, 2007). Accessed February 27, 2021. https://www.pagepressjournals.org/index.php/mm/article/view/2778.