# Dynamic forms, dynamic visits, and alternate forms

Dynamic forms, dynamic visits, and alternate forms are created in a study only if certain conditions are met.

- Dynamic forms—CRFs that appear in a visit based on the clinical data that you enter for a subject. For example:
  - When you indicate that a subject is female, a Pregnancy Result form appears.
  - When a subject comes in for an unscheduled visit, you can indicate which forms should appear in that visit.
- Dynamic visits—An extension visit that appears only if a user enters data on an Eligibility form that indicates that the subject is eligible to continue.

  Dynamic visits are automatically added to a subject's Time and Events Schedule based on the clinical data that you enter for that subject. For example, if a subject agrees to extend participation in the study, extension visits are automatically generated.

- Alternate forms—A new version of a form that collects additional data on a subject after the visit in which such data would usually be recorded. The alternate form appears in the visit where the data would have been collected originally.

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