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To view the full text, please login as a subscribed user or purchase a subscription. Click here to view the full text on ScienceDirect. Sphenopalatine ganglion (SPG) block has been shown to be an effective treatment for headaches. Multiple therapeutic agents have been studied, although the wide availability and low cost of lidocaine and bupivacaine have made them attractive treatment options. However, no study has demonstrated superiority of one over the other.
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