All biospecimens are labeled with a barcode that is unique to each sample. To further ensure confidentiality, each participant is also assigned a unique participant ID which is used on sample documentation. This means that while relevant pathological details of the sample and de-identified participant information might be shared with researchers (e.g., gender, age, diagnosis, time of sample retrieval), the identifier that is provided to researchers is a unique sample number, and cannot be traced back to the donor.