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BioSample Documentation

The BioSample database stores descriptive information about the physical biological materials used to generate data submitted to NCBI's primary data archives. Typical examples of a BioSample include a cell line, a tissue biopsy or an environmental isolate. The BioSample database promotes the use of structured and consistent attribute names and values to describe sample properties and provenance. BioSample records are reciprocally linked to data derived from that sample and to the BioProjects in which they participate.

The NCBI Handbook provides a general overview of the database, including how to query and download data.

The BioSample Submission FAQ provides information about submitting to the database.

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