"A large, costly and time-consuming clinical trial with proper controls
might someday prove Frankovich’s hypothesis correct. But large, costly
and time-consuming clinical trials are rarely carried out for uncommon
complications of this sort. In the absence of such focused research,
doctors and scientists are increasingly dipping into enormous troves of
data that already exist — namely the aggregated medical records of
thousands or even millions of patients to uncover patterns that might
help steer care."
From: "
Can Big Data Tell Us What Clinical Trials Don't?"
