TY - RPRT TI - Semiparametric methods for estimation of a non-linear exposure-outcome relationship using instrumental variables with application to Mendelian randomization AU - Staley, J. R. AU - Burgess, S. PY - 2017 DO - 10.1101/103986 UR - https://www.biorxiv.org/content/10.1101/103986v1 ID - 10.1101/103986 ER -