Arkema, JMMeerhoff, TJPaget, WJMeijer, ArivmAnsaldi, FBuchholz, UFleming, DNicoll, Avan der Velden, J2025-03-192025-03-1920071743978310.2807/esw.12.10.03152-enhttps://rivm.openrepository.com/handle/10029/642454Seasonal influenza activity in Europe: declining in most countries in the West but increasing in the North-East.ArticleEurosurveillance Weekly 2007; 12(10):pii.31522025-03-19