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Informant
A person who provides information or data, often confidentially, for a particular study or investigation.
Collaborator
A person or organization that works jointly with others towards a common goal, especially in scientific, academic, or creative projects.
Participant
An individual who takes part in a research study or experiment, often providing data or insights.
Anonymity
A state of being unknown or unacknowledged, protecting personal or confidential information from being disclosed.
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