http://www.test.bbcnewsd73hkzno2ini43t4gblxvycyac5aw4gnv7t2rccijh7745uqd.onion/news/health-68624334
"They found seven tumours in my brain, which were causing my headaches, but further investigation found that my primary cancer was in my lung, where I have three tumours." The cancer had also spread to Kat's lymph nodes and her skull. She was offered a blood test, also described as a "liquid biopsy" which looks for fragments of DNA which have broken off tumours and are in the bloodstream.