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Dawson SL, Robinson TG, Youde JH, James MA, Martin A, Weston P, Panerai R, Potter JF.Dawson SL, et al.Clin Auton Res. 1997 Dec;7(6):279-84. doi: 10.1007/BF02267718.Clin Auton Res. 1997.PMID: 9430798Clinical Trial.