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Kim Y, Gelehrter SK, Fifer CG, Lu JC, Owens GE, Berman DR, Williams J, Wilkinson JE, Ives KA, Xu Z.Kim Y, et al. Among authors: owens ge.Ultrasound Obstet Gynecol. 2011 Apr;37(4):450-7. doi: 10.1002/uog.8880.Ultrasound Obstet Gynecol. 2011.PMID: 21433165Free article.
Vlaisavljevich E, Kim Y, Allen S, Owens G, Pelletier S, Cain C, Ives K, Xu Z.Vlaisavljevich E, et al.Ultrasound Med Biol. 2013 Aug;39(8):1398-409. doi: 10.1016/j.ultrasmedbio.2013.02.005. Epub 2013 May 15.Ultrasound Med Biol. 2013.PMID: 23683406Free PMC article.