VANCOUVER, British Columbia, June 8 (UPI) -- Doctors in Vancouver were stunned when the man they were operating on turned out to have dark green blood. No, the man was not following in the steps of "Star Trek's" fictional Mr. Spock -- a Vulcan with green blood, BBC News reported. The 42-year-old patient's unusually colored blood was caused by a migraine medication called sumatriptan, BBC News reported Friday. The medication caused a rare condition where sulfur is incorporated into the oxygen-carrying red blood cells, which turns the blood green, said Dr. Alana Flexman of St. Paul's Hospital in Vancouver. The...