RT Journal Article SR Electronic T1 Failure to Replicate a Genetic Signal for Sex Bias in the Steppe Migration into Central Europe JF bioRxiv FD Cold Spring Harbor Laboratory SP 114124 DO 10.1101/114124 A1 Iosif Lazaridis A1 David Reich YR 2017 UL http://biorxiv.org/content/early/2017/03/14/114124.abstract AB