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. Author manuscript; available in PMC: 2010 May 1.
Published in final edited form as: Eur J Obstet Gynecol Reprod Biol. 2009 Mar 19;144(Suppl 1):S96–100. doi: 10.1016/j.ejogrb.2009.02.023

Figure 5.

Figure 5

ISI maps computed in lower and higher frequency bands from 38 weeks 1 day to 48 hours before active labor (39 weeks 0 days). There is a gradual increase in the synchrony and its spatial distribution as well, as the subject progressed toward active labor.