This control prevents deadlocks and race conditions. For security, BSI has user password access, 3 types of user access levels, and 36 user permissions (levels of access) that can be set to control access to the system functions. BSI provides audit tracking for processes that are done to specimens including shipping, returning to inventory, aliquotin g, thawing, additives, and other processes. BSI tracks the ancestry of specimens as they are aliquoted, as well as discrepancies and discrepancy resolution for specimens received by the repository. If a specimen goes out of the inventory, the system mainta ins data associated with the withdrawal request. Vials are labeled with a unique BSI ID which is printed in both eye -readable and bar-coded format. No participant -specific information is encoded in this ID. Investigators are granted view, input, and withdrawal authority only for their specimens. They may not view specimen data or access specimens for which they have not been authorized. Access to specimen storage is confined to repository staff. Visitors to t he repositories are escorted by repository staff at all times. 5.3.2 Procedures for Storage of Tissue Specimens in the Laboratory of Pathology Tissues designated for clinical diagnostics are transported to the Laboratory of Pathology (LP) where they are examined grossly and relevant portions are fixed, embedded in paraffin and sectioned and stained for diagnostic interpretation. Unutilized excess tissues are stored for up to three months, in accordance with College of American Pathologists/Joint Commission on Accreditation of Healthcare Organizations (CAP/JCAHO) guidelines, and then discarded. 60 Abbreviated Title: Combo Immunotx in HPV Cancers Version Date: 05.12.2023 Following completion of the diagnostic workup, the slides and tissue blocks are stored indefinitely in the LP’s clinical archives. All specimens are catalogued and retrieved utilizing the clinical laboratory information systems, in accordance with CAP/JCAHO regulations.