TY - RPRT TI - Investigating causality in associations between education and smoking: A two-sample Mendelian randomization study AU - Gage, S. H. AU - Bowden, J. AU - Davey Smith, G. AU - Munafo, M. R. PY - 2017 DO - 10.1101/184218 UR - https://www.biorxiv.org/content/10.1101/184218v1 ID - 10.1101/184218 ER -