?:authorAffiliation
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[\'Obstetric Unit, Department of Medical and Surgical Sciences, Policlinico Sant\'Orsola-Malpighi, University of Bologna, Bologna, Italy. Electronic address: anna.dellagatta2@unibo.it.\', \'Obstetric Unit, Department of Medical and Surgical Sciences, Policlinico Sant\'Orsola-Malpighi, University of Bologna, Bologna, Italy.\']
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