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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Ultrasound Med Biol. 2015 May 23;41(9):2533–2539. doi: 10.1016/j.ultrasmedbio.2015.04.022

Figure 3. Thirty-six subjects each scanned twice and approximately 12-hours apart, for which ultrasonic attenuation (Attn) and cervical length (CL) were determined.

Figure 3

Attn1 and CL1 denote before a cervical ripening agent was administered, Attn2 and CL2 denote 12 hours after the administration of a cervical ripening agent, and Attn2 – Attn1 and CL2 - CL1 denote the changes between the two attenuation and cervical length outcomes. Fig. 3A and 3C are ordered by increasing Attn1 and CL1. Fig. 3B and 3D segmented by parity into nulliparous and multiparous, and then for each, into their respective ordering by increasing Attn1 and CL1.