To Stratify Or Not To Stratify: What Can Be Learned From Power Considerations And A Practical Genome-Wide Search On Sex-Difference In The GIANT Consortium - Heid, I; Winkler, T; Randall, J; Behrens, G; Kutalik, Z; Berndt, S; Jackson, A; Kilpelainen, T; Monda, K; Qi, L; Workalemahu, T; Czajkowski, J; et al. (2012)