title: Erratum to: What impact do assumptions about missing data have on conclusions? a practical sensitivity analysis for a cancer survival registry.
authors.affiliation: Centre for Psychiatry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK. m.smuk@qmul.ac.uk.
authors.forename: M
authors.initials: M
authors.lastname: Smuk
authors.affiliation: Medical Statistics Department, London School of Hygiene and Tropical Medicine, London, UK.|London Hub for Trials Methodology Research, MRC Clinical Trials Unit at UCL, London, UK.
authors.forename: J R
authors.initials: JR
authors.lastname: Carpenter
authors.affiliation: Medical Statistics Department, London School of Hygiene and Tropical Medicine, London, UK.|London Hub for Trials Methodology Research, MRC Clinical Trials Unit at UCL, London, UK.
authors.forename: T P
authors.initials: TP
authors.lastname: Morris