.mayo clinic: "migraine: diagnosis & treatment," "monoclonal antibody drugs for cancer: how they work.".shocking figures uncovered by labour show some patients are suffering agonising waits of as many as 541 days to begin treatment..view navigation.copyright 2018 npr. to see more, visit /www.npr.org/.. a senior northern ireland civil servant has apologised after hundreds of neurology patients were recalled for further testing...