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Roberts SW, Leveno KJ, Sidawi JE, Lucas MJ, Kelly MA.Roberts SW, et al. Among authors: lucas mj.Obstet Gynecol. 1995 Jan;85(1):79-83. doi: 10.1016/0029-7844(94)p4401-9.Obstet Gynecol. 1995.PMID: 7800330