it's not clear how well they'll stack up against current migraine therapies, because head-to-head studies haven't been done. .
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it's not clear how well they'll stack up against current migraine therapies, because head-to-head studies haven't been done. .
the school in yarmouth that year had a low opt-out rate � 2 percent, the superintendent said � so there was a cap on the amount of disruption an illness could cause. .
embolization “cuts off the blood supply to a certain part of the body,” according to the national institutes of health. .