?:authorAffiliation
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[\'Department of Obstetrics and Gynecology, Hospital Universitario General de Villalba, Madrid, Spain. Electronic address: ricardo.saviron@hgvillalba.es.\', \'Department of Obstetrics and Gynecology, Hospital Universitario General de Villalba, Madrid, Spain.\', \'Department of Microbiology, Hospital Universitario General de Villalba, Madrid, Spain.\', \'Escuela Universitaria Politécnica de La Almunia, Universidad de Zaragoza, Zaragoza, Spain.\', \'Instituto de Investigación Sanitaria de Aragón and University of Zaragoza, Faculty of Medicine, Zaragoza, Spain.\']
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