_ Associazione Italiana per lo Studio del Fegato :
www.webaisf.org
_ Dipartimento Politiche Antidroga :
www.politicheantidroga.it
_ Hepatitis Scotland :
www.hepatitisscotland.org.uk
_ British Liver Trust :
www.britishlivertrust.org.uk
_ Institute of Psychiatry and Neurology :
www.ipin.edu.pl
_ International Network on Hepatitis in Substance Users :
www.inhsu.com/
_ Hepatitis C :
www.hepch.ch/en/