Repeated STI and HIV testing among HIV-negative men who have sex with men attending a large STI clinic in Amsterdam: a longitudinal study
Henrike J Vriend, Ineke G Stolte, Janneke C M Heijne, Titia Heijman, Henry J C De Vries, Ronald B Geskus, Marianne A B Van der Sande, Maria Prins
Sex Transm Infect Jun 2015, 91 (4) 294-299; DOI: 10.1136/sextrans-2014-051786
