Authors: A Clavel; A C Arnal; E C Sánchez; J Cuesta; S Letona; J A Amiguet; F J Castillo; M Varea; R Gómez-Lus Journal: Infection Date: 1996 Sep-Oct Impact factor: 3.553
Authors: O Brandonisio; A Marangi; M A Panaro; R Marzio; M I Natalicchio; P Zizzadoro; U De Santis Journal: Eur J Epidemiol Date: 1996-04 Impact factor: 8.082