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. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: Acta Obstet Gynecol Scand. 2011 Jun 27;90(10):1057–1069. doi: 10.1111/j.1600-0412.2011.01178.x

Figure 2.

Figure 2

Treatment with onapristone (ZK-98299) on day 16 of pregnancy induces preterm delivery and an increase the EMG PS Peak frequency in rats. From modification of figures in Shi et. al. Am J. Obstet Gynecol. 2008;198:235 e1–235.e4.