@article{:/content/10.2807/1560-7917.ES.2021.26.36.2100054, author = "Baum, Ulrike and Kulathinal, Sangita and Auranen, Kari", title = "Spotlight influenza: Estimation of influenza vaccine effectiveness in elderly people with assessment of residual confounding by negative control outcomes, Finland, 2012/13 to 2019/20", journal = "Eurosurveillance", year = "2021", volume = "26", number = "36", eid = 2100054, pages = "", url = "https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2021.26.36.2100054", doi = "https://doi.org/10.2807/1560-7917.ES.2021.26.36.2100054" }