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 "r" cql: author exact 002004169540 or (type exact bookEditor and editor exact 002004169540) Add to list Journal Article A1 open access medflex : an R package for flexible mediation analysis using natural effect models Johan Steen (UGent) , Tom Loeys (UGent) , Beatrijs Moerkerke (UGent) and Stijn Vansteelandt (UGent) (2017) JOURNAL OF STATISTICAL SOFTWARE. 76(11).