The current status of the article’s copyright. Copyright status can be active, public, or unknown. If status is active, then copyright date and copyright holder should be identified.
This is an APA-specific (non-NLM) attribute.
| Value | Meaning |
|---|---|
| active | A current ,active copyright applies to this article. |
| public | There is a public copyright for this article. |
| unknown | Copyright status is not known |
| Default value: active | |