Guest guest Posted August 16, 2007 Report Share Posted August 16, 2007 You can take a survey at the following site to see if you qualify for the double blind study. http://www.pfo-migraine.com/faq.html A pfo is a small hole in the heart that people are having closed to prevent stroke. Recent studies have shown that a very high percentage of people who have the hole closed, are coincidentally being relieved of migraines, so they're now doing a study to see if this is an effective migraine treatment. penny Quote Link to comment Share on other sites More sharing options...
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