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Article History

Received: 19 June 2017

Accepted: 27 February 2019

First Online: 20 March 2019

Authors’ information

: 12 de Octubre Hospital. Avenida de Córdoba s/n. 28,041 Madrid. Spain.JRL, the trial coordinator, is a doctoral student of the Universidad Complutense de Madrid.La Fe University Hospital. Avenida de Fernando Abril Martorell, 106, 46,026 Valencia. SpainLa Paz University Hospital. Paseo de la Castellana, 261, 28,046 Madrid. SpainCruces University Hospital. Plaza de Cruces, S/N, 48903 Baracaldo, VizcayaVall d’Hebron University Hospital. Paseo de la Vall d’Hebron, 119–129, 08035 Barcelona. SpainSan Joan de Déu University Hospital. Passeig de Sant Joan de Déu, 2, 08950 Esplugues de Llobregat, Barcelona. SpainQuironSalud Madrid University Hospital. Calle Diego de Velázquez, 1, 28,223 Pozuelo de Alarcón, Madrid. SpainBCNatal (Centre de Medicina Maternofetal i Neonatal de Barcelona, Hospital Sant Joan de Déu, Hospital Clínic). Calle de Villarroel, 170, 08036. Spain.

: The study protocol was submitted for approval to the Clinical Research Ethics Committee of 12 de Octubre Hospital and those of the other participating centers. A single informed consent form was prepared for the women who decided to participate in the study. If a woman decides to withdraw her consent for participating in the study, no new datum will be added, and she may request the erasing of her already recorded data.

: Not applicable.

: The authors declare that they have no competing interests.

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