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but shocking figures uncovered by labour yesterday show some patients are suffering agonising waits of as many as 541 days to begin treatment. . .
"we were quite surprised to find there were no significant differences," says study author .
while all of the drugs work on cgrp, they don�t all work the same way. three of them target the cgrp molecule itself. aimovig goes after cgrp's receptor in the brain. .