The study - conducted by the researchers at the University at Buffalo on the relationship between CCSVI and MS and published in Neurology (journal of the American Academy of Neurology) on April 13, 2011 (www.neurology.org) - is causing quite a stir, but this piece of news requires some clarifications. As a matter of fact, these studies are said to disprove the theory according to which there is a relationship between CCSVI and MS, highlighting the fact that MS is not a cause but rather a consequence of MS.