Show 10 5 10 15 20 50 100 250 Sort by year (new to old) Actions Download search results Subscribe to news feed Your filters: cql: keyword exact "hard to reach" Add to list Journal Article A2 open access Hidden and uninterested populations : methodological insights and unresolved issues from the study of Cannabis Social Clubs Mafalda Pardal (UGent) , Melissa Bone, Tom Decorte (UGent) , Rosario Queirolo, Òscar Parés, Julia Johansson, Eliana Álvarez and Lorena Repetto (2020) METHODOLOGICAL INNOVATIONS. 13(3). Add to list Journal Article A1 open access Early detection and intervention for attention-deficit/hyperactivity disorder Edmund Barke (UGent) , J Koerting, E Smith, DC McCann and M Thompson (2011) EXPERT REVIEW OF NEUROTHERAPEUTICS. 11(4). p.557-563