stephen silberstein, md, director, jefferson university headache center. .
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anr is a not for profit organisation that relies on sponsors and donations. .
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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. .
stephen silberstein, md, director, jefferson university headache center. .
anr is a not for profit organisation that relies on sponsors and donations. .
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