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Perrotta A, Arce-Leal N, Tassorelli C, Gasperi V, Sances G, Blandini F, Serrao M, Bolla M, Pierelli F, Nappi G, Maccarrone M, Sandrini G.Perrotta A, et al. Among authors: sandrini g.Headache. 2012 Oct;52(9):1350-61. doi: 10.1111/j.1526-4610.2012.02170.x. Epub 2012 Jun 1.Headache. 2012.PMID: 22670561