Cava, M.C., C.L. Bonanno, M.V. De Sandro, S. Lauri, C. Tuccinardi, and A. Spanò. “STREPTOCOCCUS PYOGENES: RESISTENZA IN VITRO A ERITROMICINA, CLARITROMICINA, ROKITAMICINA.”. Microbiologia Medica 18, no. 2 (June 30, 2003). Accessed April 23, 2021. https://pagepressjournals.org/index.php/mm/article/view/4253.