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Expression of AKR1B1 and SLCO2A1 protein in the fetal membranes in association with term and preterm labor compared to not in labor. TNIL, term not in labor; PNIL, preterm not in labor; SPL, spontaneous preterm labor; STL, spontaneous term labor; IOL, induction of labor. Westerns are representative of immunoblots prepared from fetal membranes collected immediately after delivery, **p < 0.005.
