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Llurba E, Carreras E, Gratacós E, Juan M, Astor J, Vives A, Hermosilla E, Calero I, Millán P, García-Valdecasas B, Cabero L.Llurba E, et al. Among authors: astor j.Obstet Gynecol Int. 2009;2009:275613. doi: 10.1155/2009/275613. Epub 2009 May 27.Obstet Gynecol Int. 2009.PMID: 19936122Free PMC article.