title: When should an interim analysis be unblinded to the data monitoring committee?
authors.affiliation: Department of General Practice, Care and Public Health Research Institute (Caphri), Faculty of Health, Medicine and Life Sciences, Maastricht University, 6220 MD Maastricht, The Netherlands. andre.knottnerus@hag.unimaas.nl
authors.forename: J André
authors.initials: JA
authors.lastname: Knottnerus
authors.forename: Mark G
authors.initials: MG
authors.lastname: Spigt
mesh_terms: D035843:Biomedical Research; D026661:Clinical Trials Data Monitoring Committees; D003627:Data Interpretation, Statistical; D030881:Disclosure; D006801:Humans; D012107:Research Design; D013997:Time Factors