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The specimen labels for which there exists value in 'Reserved Event > Distribution Protocol' are reserved specimens. Specimens which have data under 'Distributed Event > Distribution Protocol'.
The data view can be sorted in ascending/descending order by clicking on the column headers. The range for 'Reserved ID'/ 'Distributed ID' can be specified in the left-hand side filters, starting from 1.
This query definition (JSON) file can be imported from here: SpecimensQuery