Allizond, Valeria, Giuliana Banche, Janira Roana, Nicolò Li Vigni, Narcisa Mandras, Daniela Scalas, Vivian Tullio, Nicola A. Carlone, Dianella Savoia, Anna Barbui, and Anna Maria Cuffini. 2008. “Isolation of Different Erythromycin-Resistance Streptococcus Pneumoniae Phenotypes in Piemonte Region”. Microbiologia Medica 23 (2). https://doi.org/10.4081/mm.2008.2583.