The CQL-to-ELM translator currently supports an interval-valued overload of between, as in the following expression definition:

```
define "Retinal Exam in Measurement Period or Year Prior":
  ["Physical Exam, Performed": "Retinal or Dilated Eye Exam"] Retinal Exam
    where Global."NormalizeInterval"(RetinalExam.relevantDatetime, RetinalExam.relevantPeriod)
      between start of "Measurement Period" - 1 year and end of "Measurement Period"
```
The translator translates this as an IncludedIn, so the ELM is correct, but this particular overload of between is not documented in the between reference.