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Grotta JC, Burgin WS, El-Mitwalli A, Long M, Campbell M, Morgenstern LB, Malkoff M, Alexandrov AV.Grotta JC, et al. Among authors: alexandrov av.Arch Neurol. 2001 Dec;58(12):2009-13. doi: 10.1001/archneur.58.12.2009.Arch Neurol. 2001.PMID: 11735774