Text and Data Mining valid from 2020-01-09
First Online: 9 January 2020
Compliance with Ethical Standards
: All authors declare that they have no conflict of interest.
: The funders had no role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript.
: All procedures followed were in accordance with the ethical standards of the Ethics Committee of the Bellvitge University Hospital (approval reference of the project: PR338/17), and with the Helsinki Declaration of 1975, as revised in 2000. Informed consent was obtained from all patients for being included in the study.