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Expression of the INSL4 gene by quantitative real-time PCR in A. placentas (n=3) and B. fetal membranes (n=4) obtained from discordant twins, one twin with normal growth and the other with growth restriction (IUGR). Means ± SD shown, there was 2-fold more INSL4 expressed in the placentas of the IUGR twins (not significant).
