RT Journal Article SR Electronic(1) A1 Van de Laar , M A1 Spiteri, G YR 2012 T1 Increasing trends of gonorrhoea and syphilis and the threat of drug-resistant gonorrhoea in Europe JF Eurosurveillance VO 17 IS 29 SP 20225 OP DO https://doi.org/10.2807/ese.17.29.20225-en UL https://www.eurosurveillance.org/content/10.2807/ese.17.29.20225-en