Can results of studies be biased ? I believe with regards to Aspartame that all industry-sponsored research shows it to be safe, whereas all privately-funded research shows it to cause brain tumors.
It is spurious that a bias exists in the first place, One might expect results to be more random between conclusions of harmful and safe on each side of the fence. In any event, the results seem to point to the conclusion that the source of money has an impact on the results. To the honest and trusting types, this seems unfathomable. To those experienced, it is well-accepted as truth.
Is the same true for dental Amalgam studies ? Some know, while others have yet to learn.