Objective To validate primary and secondary care codes in electronic health records to identify people receiving chronic kidney replacement therapy based on gold standard registry data. Design Validation study using data from OpenSAFELY and the UK Renal Registry. with the approval of NHS England. Setting Primary and secondary care electronic health records from people registered at 45... https://www.spidertattooz.com/The-GelBottle-Inc-Gel-Polish-Audrey-67oz-p17921/