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Tsivgoulis G, Saqqur M, Barreto A, Demchuk AM, Ribo M, Rubiera M, Sharma VK, Stamboulis E, Schellinger PD, Molina CA, Alexandrov AV.Tsivgoulis G, et al. Among authors: demchuk am.Cerebrovasc Dis. 2011;31(5):471-6. doi: 10.1159/000324387. Epub 2011 Mar 3.Cerebrovasc Dis. 2011.PMID: 21372569Clinical Trial.