Rizzo Caterina, Esposito Susanna, Azzari Chiara, Bartolozzi Giorgio, Fara Gaetano Maria, Lo Giudice Milena, Ciofi Degli Atti Marta
Infectious Diseases Unit, National Centre for Epidemiology, Surveillance and Health Promotion. National Institute of Health, Rome, Italy.
Pediatr Infect Dis J. 2011 Jan;30(1):65-6. doi: 10.1097/INF.0b013e31820591dc.