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The umbilical coiling index, a review of the literature.
de Laat MW, Franx A, van Alderen ED, Nikkels PG, Visser GH. de Laat MW, et al. Among authors: van alderen ed. J Matern Fetal Neonatal Med. 2005 Feb;17(2):93-100. doi: 10.1080/14767050400028899. J Matern Fetal Neonatal Med. 2005. PMID: 16076615 Free article. Review.
The umbilical coiling index in complicated pregnancy.
de Laat MW, van Alderen ED, Franx A, Visser GH, Bots ML, Nikkels PG. de Laat MW, et al. Among authors: van alderen ed. Eur J Obstet Gynecol Reprod Biol. 2007 Jan;130(1):66-72. doi: 10.1016/j.ejogrb.2006.01.018. Epub 2006 Mar 2. Eur J Obstet Gynecol Reprod Biol. 2007. PMID: 16513244