Dopamine-beta-hydroxylase 19-bp insertion/deletion polymorphism affects medication overuse in patients with chronic

Piero Barbanti1, Fiorella Guadagni2,3, Maria Laura De Marchis2,4

  • 1Headache and Pain Unit, Department of Neurological, Motor and Sensorial Sciences, IRCCS San Raffaele Pisana, Rome, Italy.

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