Rizzo C, Alfonsi V, Bruni R, Busani L, Ciccaglione Ar, De Medici D, Di Pasquale S, Equestre M, Escher M, Montano-Remacha Mc, Scavia G, Taffon S, Carraro V, Franchini S, Natter B, Augschiller M, Tosti Me
Istituto Superiore di Sanita (ISS), National Centre for Epidemiology Surveillance and Health Promotion, Rome, Italy.
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