Duplicate references in EndNote may lead to confusing by citing both versions and thus having double entries in your bibliography/reference list.
To find and remove duplicate references:
If you want to update multiple citations at the same time (eg. adding a retrieval date or label), the best time to do it is when you have just imported them (in the ‘Imported References’ window) or in a Group.
To edit a field in multiple citations:
If you find that your reference data is not very good, EndNote can look up and import metadata from PubMed or Web of Science to improve it.
To update your references:
To edit your bibliography/reference list: