It’s interesting to see that they permanently retain their medical records.

Here’s an excerpt:

The University of Texas Medical Branch at Galveston (UTMB)
permanently retains medical records for patient care, education,
research and to meet legal requirements.

The Health Information Management Department (HIM) is
responsible for maintaining these records regardless of medium type.
This includes all microfilm/fiche, paper or electronic, computer-based
systems that may be retired because of improved systems operations,
upgrades, or a conversion to alternate application.

An archived copy of the policy is here: Medical Record Retention Policy

Check it out!