"if the battery in a mechanical mod over-discharges and the device doesn't contain enough air holes to allow the battery to vent, there is a risk of explosion."
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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.
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the report was compiled by outside researchers who went into the fda�s own database of �serious adverse [medical-drug] events.�
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