%0 Journal Article %T Proper conditional analysis in the presence of missing data: Application to large scale meta-analysis of tobacco use phenotypes %A Anita Pandit %A Bibo Jiang %A Dajiang J. Liu %A Daniel McGuire %A Fang Chen %A Goncalo R. Abecasis %A Gregory J. M. Zajac %A John E. Hokanson %A John K. Hewitt %A Kenneth Krauter %A Kevin W. Li %A Markku Laakso %A Matthew McGue %A Mengzhen Liu %A Michael Boehnke %A Sai Chen %A Scott I. Vrieze %A Sharon M. Lutz %A William G. Iacono %A Xiaowei Zhan %A Yu Jiang %J Archive of "PLoS Genetics". %D 2018 %R 10.1371/journal.pgen.1007452 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6063450/