Polio outbreak in Albania, 1996 Ciofi Degli Atti, M L and Prevots, R and Sallabanda, A and Malfait, P and Diamantil, E and Aylward, B and Greco, D and Wassilak, S, Eurosurveillance, 2, 162 (1997), https://doi.org/10.2807/esm.02.05.00162-en