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official guidelines say no one should wait more than 62 days to get cancer care after an urgent referral by their gp. .
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. .
one downside to existing drugs that prevent migraine is they can cause unpleasant side effects like .
the outbreak killed 20 and sickened 577 people between november 2016 and october 2017. . . .