Age-specific vaccination coverage estimates for influenza, human papillomavirus and measles containing vaccines from seven population-based healthcare databases from four EU countries ? The ADVANCE project, Braeye, Toon, Emborg Hanne-Dorthe, Llorente-García Ana, Huerta Consuelo, Martín-Merino Elisa, Duarte-Salles Talita, Danieli Giorgia, Tramontan Lara, Weibel Daniel, McGee Chris, et al. , Vaccine, Jan-04-2020, Volume 38, Issue 16, (2020)