lea ament, left, and tamara nunley talk about the care their team provided for helen and robert valenzuela at st. jude medical center in fullerton. (scott smeltzer / staff photographer).
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"in contrast, a mechanical mod is unregulated and works simply by drawing the power of a battery to an atomizer," he said. .
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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