Steens, AWaaijenborg, STeunis, PFReimerink, JHMeijer, Avan der Lubben, MKoopmans, Mvan der Sande, MAWallinga, Jvan Boven, M2025-03-202025-03-20201122025354https://rivm.openrepository.com/handle/10029/644991Age-dependent patterns of infection and severity explaining the low impact of 2009 influenza A (H1N1): evidence from serial serologic surveys in the NetherlandsArticleAm J Epidemiol 2011; 17(11):1307-152025-03-20