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It's for CH. Although I can't recall if they are still taking "applications"

FWIW, two relatively recent posters from somewhat nearby countries have been Milelli from Germany and Siegfried from Belgium. Siegfried actually has a hemicrania, not CH, but he has done a lot of CH investigation. Denny, is the Facebook group more international? As I remember, there is (or recently was) an LSD study in Basel. I don't remember whether it was specifically for CH, or perhaps for something else, like anxiety. (If there was a selection here to rate this post as "almost completely unhelpful despite good intentions," it could get overwhelming support, I think.)