@article{:/content/10.2807/esm.09.01.00439-pt, author = "Struelens, M J", title = "", journal = "", year = "", volume = "", number = "", eid = , pages = "", url = "https://www.eurosurveillance.org/content/10.2807/esm.09.01.00439-pt", doi = "https://doi.org/" }