Text and Data Mining valid from 2019-03-14
Received: 15 September 2018
Accepted: 26 February 2019
First Online: 14 March 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: The approval of our center’s Ethics Committee was obtained in order to conduct of the study (ECRAYM 2008). Prior to their inclusion in the study, patients were informed of its nature and gave their written consent.