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Harmonization of study and reference data by PhaseLift: saving time when imputing study data

Gorski, M. ; Winkler, T. W. ; Stark, K. ; Müller-Nurasyid, M. ; Ried, J. S. ; Grallert, H. ; Weber, Bernhard H. F. ; Heid, Iris M.



Abstract

Genome-wide association studies are usually accompanied by imputation techniques to complement genome-wide SNP chip genotypes. Current imputation approaches separate the phasing of study data from imputing, which makes the phasing independent from the reference data. The two-step approach allows for updating the imputation for a new reference panel without repeating the tedious phasing step. This ...

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