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Experimental design of the study. Fetuses were instrumented at gestational age (GA) of 102 d. Four days after instrumentation (106 GA), umbilical cord occlusion (UCO) or sham was performed for 25 min followed by intravenous administration of either mesenchymal stem cells (MSCs) or saline (0.9% NaCl) 1 h after the end of UCO. The fetuses were euthanized 7 d after UCO or sham at 113 d of gestation.
