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This section provides contextual information on the core primary care EHR systems inside which OpenSAFELY is built (currently TPP and EMIS), as well as all external datasets imported to the secure EHR environment. To query the data, see the study definition section.

Use the navigation pane to the left of the page view information on each dataset.

Primary care data explainer🔗

We've made a video to help explain primary care data in more detail; essential viewing if you're new to this domain.