Moler-Zapata, Silvia;    Grieve, Richard;    Lugo-Palacios, David;    Hutchings, A;    Silverwood, R;    Keele, Luke;    Kircheis, Tommaso;                 ... O'Neill, Stephen; + view all <#>        Moler-Zapata, Silvia;  Grieve, Richard;  Lugo-Palacios, David;  Hutchings, A;  Silverwood, R;  Keele, Luke;  Kircheis, Tommaso;  Cromwell, David;  Smart, Neil;  Hinchliffe, Robert;  O'Neill, Stephen;   - view fewer <#>    (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 <https://doi.org/10.1177/0272989X221100799>.    (In press).    Green open access