I know there have been studies determining the effects on the body from e-cigs and they all say they might be more harmful than regular cigarettes or might be as harmful as cigarettes, but I have not found 1 study that puts e-cigs head to head with real cigs.
Have there been any studies or reports that test e-cigs and real cigs head to head?
Have there been any studies or reports that test e-cigs and real cigs head to head?