Legal access to needles and syringes/ needle exchange programs versus HIV counselling and testing to prevent transmission of HIV among intravenous drug users: A comparative study of Denmark, Norway and Sweden.

Ellen J. Amundsen, Anne Eskild, Hein Stigum, Else Smith, Odd O. Aalen

European Journal of Public Health Vol 13 (3): s. 252-258
You can read the abstract here and the full text article here if you subscribe to the online service of the Journal.

You can read a Norwegian presentation of the study on SIRUS website here