ReviewVolume 88103465Open access aRobertson Centre for Biostatistics & General Practice and Primary Care, School of Health and Wellbeing, University of Glasgow, Glasgow, UK bDepartment Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands cInternational Drug Development Institute (IDD), Biostatistics, Louvain la Neuve and University of Hasselt, I-BioStat, Hasselt, Belgium dCenter for Research on Health and Social Care...