Bao, Yanchun; Clarke, Paul; Smart, Melissa C; Kumari, Meena - 2018
using multiple genetic variants as instrumental variables. Our principal focus, however, is to assess the "some invalid some …We report the results of a Mendelian randomization study in which multiple genetic variants are used as instrumental … variables to estimate the causal effect of body mass index on personal income in the presence of unobserved confounding. The …