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Wing DA, Quilligan EJ.Wing DA, et al. Among authors: quilligan ej.Obstet Gynecol. 2008 Dec;112(6):1288-1293. doi: 10.1097/AOG.0b013e31818d8e9e.Obstet Gynecol. 2008.PMID: 19037038
Murata Y, Quilligan EJ, Ninomiya Y, Wakatsuki A, Masaoka N, Oka S, Fujimori K.Murata Y, et al. Among authors: quilligan ej.Am J Obstet Gynecol. 1994 Feb;170(2):689-92. doi: 10.1016/s0002-9378(94)70249-7.Am J Obstet Gynecol. 1994.PMID: 8116732