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. Author manuscript; available in PMC: 2017 Sep 1.
Published in final edited form as: Am J Obstet Gynecol. 2016 Mar 5;215(3):312.e1–312.e9. doi: 10.1016/j.ajog.2016.02.033

Figure 4.

Figure 4

Changes in physiological cross-sectional area (PCSA) of the pelvic floor muscles with vaginal parity and aging

*P values derived from Tukey’s pairwise comparisons, following two-way analysis of variance with significance level set to 5%. VN: vaginally nulliparous; VP: vaginally parous