RT Journal Article SR Electronic(1) A1 Cowan, S A YR 2004 T1 Syphilis in Denmark–Outbreak among MSM in Copenhagen, 2003-2004 JF Eurosurveillance VO 9 IS 12 SP 17SP 498 OP 18 DO https://doi.org/10.2807/esm.09.12.00498-en UL https://www.eurosurveillance.org/content/10.2807/esm.09.12.00498-en