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. Author manuscript; available in PMC: 2016 Apr 1.
Published in final edited form as: J Steroid Biochem Mol Biol. 2014 Nov 13;148:256–260. doi: 10.1016/j.jsbmb.2014.11.013

Figure 1.

Figure 1

Significance Level for Odds of Preterm Birth Comparing Participants <50 nmol/L to ≥100 nmol/L, Adjusted for Study and Race/Ethnicity