@article{:/content/10.2807/esm.11.10.00654-en, author = "Mazick, A and Christiansen, A H and Samuelsson, S and Mølbak, K", title = "Using sentinel surveillance to monitor effectiveness of influenza vaccine is feasible: A pilot study in Denmark", journal = "Eurosurveillance", year = "2006", volume = "11", number = "10", eid = 654, pages = "11-12", url = "https://www.eurosurveillance.org/content/10.2807/esm.11.10.00654-en", doi = "https://doi.org/10.2807/esm.11.10.00654-en" }