Svelato, Alessandro
Ragusa, Antonio
Manfredi, Piero
Funding for this research was provided by:
Gruppo Gestione Emergenze-urgenze Ostetriche (publication expenditures)
Article History
Received: 16 March 2019
Accepted: 14 April 2020
First Online: 7 May 2020
Ethics approval and consent to participate
: The Hospital Committee for Medical and Health Research Ethics in Niguarda Hospital, Milan, has approved the study project, number of opinions: 318–07. All eligible patients were adequately informed of the nature and objectives of the study, and written signed consent, in accordance with the Italian Privacy Law (675/96), was obtained.
: Not applicable.
: The authors declare that they have no competing interests.