Figure 7. Freezer Organization.

A. The specimens are stored in a −80°C freezer containing 5 separate shelves holding 5 disease specific racks, which are denoted as spatial coordinates a and b. B. Each rack contains 20 boxes, organized to hold unique specimen subsets in coordinate. C. The specimen boxes hold 48 two-dimensional barcoded tubes within a Cartesian coordinate system where (x, y) is denoted with (A–F, 1–8). The exact spatial location of a sample within the freezer is tracked in the database according to shelf #, rack #, box #, and then (A–F, 1–8).