Interruption of measles transmission in Gipuzkoa (Basque Country), Spain Cilla, G and Basterretxea, M and Artieda, J and Vicente, D and PĂ©rez-Trallero, E, Eurosurveillance, 9, 468 (2004), https://doi.org/10.2807/esm.09.05.00468-en