a) we generally don't have access to the records of any other health systems in the area. b) we generally assume the older data is stale. In the case of omics:

a) we generally don't have access to the records of any other health systems in the area. b) we generally assume the older data is stale. In the case of omics: did they keep the unaligned reads? What version of the genome was it aligned against? Was it a graph alignment? What depth? Did my geneticist approve of this methodology? The SNP evaluation? The variants? This goes all the way down. They'll question what generation of instrument produced the data, the duty cycles on the instrument, and on, and on, and on.