Text and Data Mining valid from 2019-02-06
Received: 26 November 2018
Accepted: 18 January 2019
First Online: 6 February 2019
Compliance with ethical standards
: None of the authors reports conflicts of interest.
: All procedures followed were in accordance with the ethical standards of the bioethical Committees for clinical research of the Clinical University Hospital San Cecilio, the Mother-Infant University Hospital of Granada, and with the Helsinki Declaration of 1975, as revised in 2008.
: Written informed consent was obtained from all participants at the study entry.