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Real-time quantitative PCR results of fetal membranes (FM) (A&B) and placental villous tissue (C&D). NGAL (A&C) and MMP-9 (B&D) mRNA levels were determined in women with preterm birth and severe intraamniotic inflammation (IAI, n=16), idiopathic preterm (iPTB, n=12) or normal term pregnancy undergoing elective C-section (Term, n=7). Error bars show standard error. Bars with at least one common letters indicate groups that are not statistically different at P>0.05.
