RL, HeijmanStolte, IGHF, ThiesbrummelE van, LeentCoutinho, RArivmFennema, JSPrins, M2025-03-192025-03-19200919103642https://rivm.openrepository.com/handle/10029/643854Opting out increases HIV testing in a large sexually transmitted infections outpatient clinicArticleSex Trans Infect 2009; 85(4):249-552025-03-19