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Chang DJ, Desjardins PJ, Bird SR, Black P, Chen E, Petruschke RA, Geba GP.Chang DJ, et al. Among authors: geba gp.Curr Med Res Opin. 2004 Jun;20(6):939-49. doi: 10.1185/030079904125003863.Curr Med Res Opin. 2004.PMID: 15200753Clinical Trial.