I wrote awhile back about the imperative of implementing Electronic Medical Records (EMR’s) on a widespread basis. The data such a system would provide would be invaluable in analyzing many factors that influence health and disease, and would reveal relationships that would be impossible to see otherwise. Initial efforts at such analysis and visualization are being done by a partnership between GE and MIT using GE’s Medical Quality Improvement Consortium, a database of 7.2 million EMR’s. Read more about it here.