http://www.nytimes.com/2012/03/06/business/digital-records-may-not-cut-health-costs-study-cautions.html But research published Monday in the journal Health Affairs found that doctors using computers to track tests, like X-rays and magnetic resonance imaging, ordered far more tests than doctors relying on paper records.
It's a lot easier to order things when you just click and it's done. I think Amazon et al figured that out a while ago. It also helps lawyers draft templates that read something like "to deter lawsuits order: A, B C . . . "