It is the smallest of the three groups (2.5 % of all European clients in treatment) and has only been identified in a few locations.
Is é an grúpa is lú é de na trí ghrúpa (2.5 % de na cliaint Eorpacha go léir a bhfuil cóireáil á fáil acu) agus níor shainaithníodh é ach amháin i líon beag áiteanna.