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Sample Name--- The unique identification name of the sample, which is referred to from within the study file. The sample is obtained after the application of a protocol. Sample names can be qualified only using Comment.

Image fileFile---The name or URI of an image file generated from an assay.

Raw data fileData File---The name or URI of the raw data files.

Derived data fileData File---The name or URI of the file resulting from data transformation or processing.

Attributes of assay nodes---One or more attributes are used to provide more information about a assay node. The different assay node attributes are described below:

Material typeType---An attribute for the sample name (for example, biospecimen, nanoparticle sample, small molecule etc.) if the same attribute is not given in the Study file. The term can be a free-text description or taken from an ontology or a controlled vocabulary. If it is the latter, then the following qualifiers are used: term accession number and term source REF.

Characteristic [ ]---An attribute for sample name if the same attribute is not given in the study file.

Assay nameName---The name of the assay performed. This name is used as an identifier within the assay file.

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Date---The calendar day on which the protocol was carried out. The date format should be in YYYY-MM-DD.

Parameter value Value [ ]--- Value of a parameter, which is kept constant, when applying a protocol. The parameter term is written within brackets and must match the term used as value for the study protocol parameter name in the investigation file.

Measurement value Value [ ]---The endpoint of the assay. This field is used to capture measurement outputs recorded in summary data.

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