TY - RPRT TI - Bias in two-sample Mendelian randomization by using covariable-adjusted summary associations AU - Hartwig, F. P. AU - Tilling, K. AU - Davey-Smith, G. AU - Lawlor, D. A. AU - Borges, M.-C. PY - 2019 DO - 10.1101/816363 UR - https://www.biorxiv.org/content/10.1101/816363v1 ID - 10.1101/816363 ER -