de Jager, CHeijne, J2025-03-182025-03-18200410.2807/esw.08.22.02475-enhttps://rivm.openrepository.com/handle/10029/640391Increase in hepatitis A in MSM in the Netherlands.ArticleEurosurveillance Weekly 2004; 8(22):pii.24752025-03-18