Through sharing data and knowledge, and then creating a system to convert ideas into practice, clinicians in the ImproveCareNow network were able to improve the remission rate for Crohn's disease from 49% to 67% without the introduction of new drugs.

Impressive stuff - would like to know who else is seeing results like this!

This article is well worth a read to get an idea of what has already been achieved with open/public data.