Affiliation: | Department of Clinical Medicine, Pathology and Pharmacology, General Pathology and Immunology Section, University of Perugia, 06100 Perugia, Italy;Department of Experimental Medicine and Biochemical Sciences, Microbiology Section, University of Perugia, 06100 Perugia, Italy;Laboratory of Bacteriology and Medical Mycology, I.S.S., Rome, Italy |