Targeted screening and health education for Chagas disease tailored to at-risk migrants in Spain, 2007 to 2010 Navarro, M and Perez-Ayala, A and Guionnet, A and Pérez-Molina, J A and Navaza, B and Estévez, L and Norman, F and Flores-Chávez, M and Lopez-Velez, R, Eurosurveillance, 16, 19973 (2011), https://doi.org/10.2807/ese.16.38.19973-en