About the Authors

Antonio La Marca

antlamarca@libero.it

Affiliation Mother-Infant Department, Institute of Obstetrics and Gynecology, University of Modena and Reggio Emilia, Modena, Italy

Giovanna Sighinolfi

Affiliation Mother-Infant Department, Institute of Obstetrics and Gynecology, University of Modena and Reggio Emilia, Modena, Italy

Enrico Papaleo

Affiliation Centro Natalità, Gynecological-Obstetrics Department, San Raffaele Hospital, Vita-Salute San Raffaele, Milano, Italy

Angelo Cagnacci

Affiliation Mother-Infant Department, Institute of Obstetrics and Gynecology, University of Modena and Reggio Emilia, Modena, Italy

Annibale Volpe

Affiliation Mother-Infant Department, Institute of Obstetrics and Gynecology, University of Modena and Reggio Emilia, Modena, Italy

Malcolm J. Faddy

Affiliation Mathematical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ALM. Performed the experiments: GS EP AC MJF. Analyzed the data: MJF. Contributed reagents/materials/analysis tools: GS EP. Wrote the paper: ALM AV MJF.