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Hempstock J, Bao YP, Bar-Issac M, Segaren N, Watson AL, Charnock-Jones DS, Jauniaux E, Burton GJ.Hempstock J, et al. Among authors: watson al.Placenta. 2003 May;24(5):517-23. doi: 10.1053/plac.2002.0955.Placenta. 2003.PMID: 12744928