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Chou MM, Kung HF, Hwang JI, Chen WC, Tseng JJ.Chou MM, et al. Among authors: tseng jj.Taiwan J Obstet Gynecol. 2015 Oct;54(5):493-8. doi: 10.1016/j.tjog.2014.03.013.Taiwan J Obstet Gynecol. 2015.PMID: 26522098Free article.