%0 Journal Article %A Tripathi, A %A Rüütel, K %A Parker, R D %T HIV risk behaviour knowledge, substance use and unprotected sex in men who have sex with men in Tallinn, Estonia %D 2009 %J Eurosurveillance %V 14 %N 48 %P 19429 %R doi:https://doi.org/10.2807/ese.14.48.19429-en %K acquired immonodeficiency syndrome - AIDS %K men who have sex with men - MSM %K sexually transmitted diseases %K human immonodeficiency virus - HIV %K sexually transmitted infections - STIs %U https://www.eurosurveillance.org/content/10.2807/ese.14.48.19429-en