From the New England Journal of Medicine:
With the Supreme Court's decision and the expectation of a substantial reduction in gun regulation we are poised to witness another epidemiologic study of the effect of regulation on gun violence. With this experiment, which may play out in many American cities, we will know in the coming years whether the overturned laws reduced death and injury from handguns. The Court has heard the arguments and made its decision; we will now learn the human ramifications in this landmark case.
Editorial in July 31, 2008 issue. Pg. 517.
Whether you agree with the position or not, I think it's an excellent and unexpected venue for a commentary on gun control. Not sure that it's scientifically sound, since there are so many other variables that go into the equation, but it's an interesting proposition nonetheless.