RT Journal Article SR Electronic(1) A1 van Oosten, H E A1 Damen, M A1 de Vries, H JC YR 2009 T1 Symptomatic primary HIV infection in a 49-year-old man who has sex with men: beware of the window phase JF Eurosurveillance VO 14 IS 48 SP 19424 OP DO https://doi.org/10.2807/ese.14.48.19424-en UL https://www.eurosurveillance.org/content/10.2807/ese.14.48.19424-en