Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Conceptual diagram of EHR data curation highlighting approaches to define variables. Abbreviations: ML: machine learning; NLP: natural language processing; RWD: real-world data. (Panel (A)): Unstructured data are reviewed by trained clinical abstractors to collect relevant data from patients’ charts. (Panel (B)): Process for developing models and extracting information from unstructured data sources from the patient’s chart.
