There'll have to be multiple studies.......analyzing the "data".....blah, blah, blah. All the while folks will be contracting PML and the doctors will be scratching their heads wondering what in the world happened. How many folks have to die before common sense kicks in? I simply do not trust the pharmaceutical companies to ever give us the correct story and my trust in doctors is becoming seriously compromised. What are sick folks supposed to do? You know, I get consistently better information from these type of forums than I do from any medical website, magazine or even from my Neurologist.