Through it all, their desire to be separated persisted. For the past 15 years, they beseeched doctors to take their case. At 14, they flew to Germany to meet with Madjid Samii, head of the International Neuroscience Institute in Hannover. Samii examined them and concluded that there was a "zero percent chance" of a successful separation. The twins didn't give up. Eight years later, in 1996, they went back to Germany, this time to meet with a group of neurosurgeons in Berlin. Again, the doctors said it was impossible. There was no way to create an alternate drainage from the vein they shared.