Text and Data Mining valid from 2018-07-06
Received: 15 June 2017
Accepted: 28 June 2018
First Online: 6 July 2018
Ethics approval and consent to participate
: All patients provided written informed consent and the study protocol was approved by the São João Hospital’s Ethics Committee for Health.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.