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. Author manuscript; available in PMC: 2009 Oct 12.
Published in final edited form as: Am J Obstet Gynecol. 2008 May;198(5):590.e1–590.e6. doi: 10.1016/j.ajog.2008.02.022

Figure 1. Stress-strain relationships of vaginal tissues from pregnant day-18 wild type mice (open circle, n = 6) compared with nonpregnant wild type controls (closed circle, n = 8).

Figure 1

Strain was calculated as the change in length of the specimen divided by its slack length, and stress is expressed in Newtons per cross-sectional area. Mean values are shown with standard errors.