Garrett (Harvard T.H. Chan School of Public Health, Boston, USA) Fitzmaurice & Michael G. (GSK Professor of Biostatistics, London School of Hygiene and Tropical Medicine, UK) Kenward 
Handbook of Missing Data Methodology [PDF ebook] 

Missing data affect nearly every discipline by complicating the statistical analysis of collected data. But since the 1990s, there have been important developments in the statistical methodology for handling missing data. Written by renowned statisticians in this area, Handbook of Missing Data Methodology presents many methodological advances and t