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b/docs/how-to/index.md |
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The how-to guides provide practical steps for working with ehrQL in your project. |
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* [Using ehrQL to answer specific questions](examples.md) |
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* [How to include and exclude patients from your study population](define-population.md) |
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* [Resolving ehrQL errors](errors.md) |
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* [How to use dummy data in an ehrQL dataset definition](dummy-data.md) |
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* [How to use dummy data in an ehrQL measures definition](dummy-measures-data.md) |
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* [How to assign multiple columns to a dataset programmatically](assign-multiple-columns.md) |
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* [How to work with codelists](codelists.md) |
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* [How to test your dataset definition](test-dataset-definition.md) |