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Ravelli AC, Schaaf JM, Eskes M, Abu-Hanna A, de Miranda E, Mol BW.Ravelli AC, et al. Among authors: schaaf jm.J Perinat Med. 2013 Jul;41(4):381-8. doi: 10.1515/jpm-2012-0228.J Perinat Med. 2013.PMID: 23314508