Evaluating Hospital Course Summarization by an Electronic Health Record–Based Large Language Model Supplement 1. eFigure. Flowchart Describing Methods for Data Processing and Evaluation eTable 1. Note Types Included for Summarization, All Remaining Note Types Not Listed Were Considered “Other” Notes eTable 2. Default Parameter Selections Chosen for EHR-Embedded Hospital Course Tool eTable 3. Plain Language and Technical Definitions of Editing Metrics eTable 4.