Moler-Zapata, Silvia; Grieve, Richard; Lugo-Palacios, David; Hutchings, A; Silverwood, R; Keele, Luke; Kircheis, Tommaso; ... O'Neill, Stephen; + view all (2022) Local Instrumental Variable Methods to Address Confounding and Heterogeneity when Using Electronic Health Records: An Application to Emergency Surgery. Medical Decision Making 10.1177/0272989X221100799. (In press). Green open access