KaroliinaKarjalainen National Institute for Health and Welfare Finland In programme October 25 11:15 to 11:25 View hours & dates Hours & Dates Plenary session Poster session Big debate Structured session Workshop Oral presentation session Short communication session Poster guided tour Friday, 25 October 11:15 Oral presentation Non-medical drug use among prescription drug users 11:15 to 11:25 Central square 2 (C2) Karoliina Karjalainen