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Lipshitz J, Wade JE, Anderson GD, Sibai BM.Lipshitz J, et al. Among authors: anderson gd.Am J Obstet Gynecol. 1981 Jan 15;139(2):199-203. doi: 10.1016/0002-9378(81)90446-4.Am J Obstet Gynecol. 1981.PMID: 7457535