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Cassell KA, O'connell CM, Baskett TF.Cassell KA, et al. Among authors: baskett tf.Am J Perinatol. 2004 Nov;21(8):439-45. doi: 10.1055/s-2004-835960.Am J Perinatol. 2004.PMID: 15580539
Allen VM, O'Connell CM, Baskett TF.Allen VM, et al. Among authors: baskett tf.BJOG. 2005 Jul;112(7):986-90. doi: 10.1111/j.1471-0528.2005.00615.x.BJOG. 2005.PMID: 15958005