It's hard for doctors to unlearn things. That's costly for all of us.

We know it can be hard to persuade physicians to do some things that have proven benefits, such as monitor blood pressure or keep patients on anticoagulants. But it might be even harder to get them to stop doing things. In May,  a systematic review in JAMA Pediatrics looked at the medical literature related to overuse in pediatric care published in 2016.