Authors: Kreidl, P Hladik, W Schoech, J Ronveaux, O

Citation: P. Kreidl et al., Potential susceptible individuals to poliomyelitis in Austria, EUR J EPID, 16(6), 2000, pp. 519-520

Authors: Salmaso, S Rota, MC Degli Atti, MLC Tozzi, AE Kreidl, P

Citation: S. Salmaso et al., Infant immunization coverage in Italy: estimates by simultaneous EPI cluster surveys of regions, B WHO, 77(10), 1999, pp. 843-851