One of the first clinics in North America devoted to testing for a vascular condition that some experts believe is linked to multiple sclerosis is set to open in Buffalo, just as scientists are to release more findings on the controversial theory. The Buffalo Neuroimaging Analysis Center (BNAC) has announced that it will begin to offer testing for the newly discovered condition, called chronic cerebro-spinal venous insufficiency (CCSVI) due to overwhelming demand from MS patients. Italian scientist Dr. Paolo Zamboni believes that CCSVI causes veins in the neck and upper chest to twist, narrow or become blocked; in some cases, these veins never form at all. The result is poor blood drainage from the brain. Zamboni has found that more than 90 per cent of patients with MS have these malformed veins, and improper blood flow from the brain.