Calderaro, A., S. Peruzzi, C. Gorrini, G. Piccolo, V. Villanacci, G. Missale, G. Dettori, and C. Chezzi. “SPIROCHETOSI INTESTINALE UMANA ASSOCIATA A LESIONI CANCEROSE E DISPLASTICHE DELLA MUCOSA DEL COLON.”. Microbiologia Medica 22, no. 3 (September 30, 2007). Accessed October 27, 2020. https://www.pagepressjournals.org/index.php/mm/article/view/2749.