[1] Ist Clin Humanitas, Dept Pathol, I-20089 Milan, Italy
[2] Ist Clin Humanitas, Sci Direct, I-20089 Milan, Italy
[3] Ist Clin Humanitas, Dermatol Unit, I-20089 Milan, Italy
[4] Ist Sci Misure Quantitat Med, Fdn Michele Rodriguez, Milan, Italy
[5] Univ Roma La Sapienza, Dept Expt Med & Pathol, Rome, Italy
[6] Univ Erlangen Nurnberg, Sch Med, Erlangen, Germany
[7] Univ Arkansas Med Sci, Little Rock, AR 72205 USA
[8] Univ Milan, Milan, Italy
[9] Texas Tech Univ, Hlth Sci Ctr, Dept Microbiol & Immunol, Lubbock, TX 79430 USA