"Inside Amazon's Grand Challenge — a secretive lab working on cancer research and other ventures"

CNBC:

Grand Challenge is also working with AWS on a project, internally dubbed Hera, which involves taking unstructured data from electronic medical records to identify an incorrect code or the misdiagnosis of a patient. The technology captures patient data that a physician may miss, and can help remove the inaccuracies for insurers as they assess a population's risk.

Grand Challenge is starting to pitch Hera, which has been in development for at least three years, to commercial health insurance companies, according to two people familiar with the effort.