RubenVrolijk Trimbos Institute Netherlands In programme October 24 15:55 to 16:10 View hours & dates Hours & Dates Plenary session Poster session Big debate Structured session Workshop Oral presentation session Short communication session Poster guided tour Thursday, 24 October 15:55 Oral presentation MDMA dosage in XTC tablets: size matters 15:55 to 16:10 Insights zone 4 (I4) Ruben Vrolijk