@clairblacketer @Christian_Reich,
I am using the SPECIMEN table for the first time. There is a field named “specimen_source_id” the description reads “The Specimen identifier as it appears in the source data”. What is an example of a “specimen identifier”?
Also, there is specimen_concept_id and anatomic_site_concept_id, but not source_concept_ids for either. Why are these fields excluded?