TY - JOUR A1 - Sterne, J.A. A1 - White, I.R. A1 - Carlin, J.B. A1 - Spratt, M. A1 - Royston, P. A1 - Kenward, M.G. A1 - Wood, A.M. A1 - Carpenter, J.R. T1 - Multiple imputation for missing data in epidemiological and clinical research: Potential and pitfalls Y1 - 2009 DO - 10.1136/bmj.b2393 JF - BMJ VL - 338 ER -