Before, lots of data was based on billing codes, which are a total mess. With electronic medical records, now they can finally collate the data in a meaningful way. Dr. Atul Butte is doing that at UCSF for the entire UC system, but it just didn't exist before a year ago. I just saw a presentation of his a few weeks ago, and he's digging into stuff like "why are there hundreds of treatment paths in the first 12 months for patients diagnosed with T2D at UC hospitals?"