Funding for this research was provided by:
ALK-Abelló S.A., Madrid, Spain
Text and Data Mining valid from 2019-08-06
Received: 15 March 2019
Accepted: 5 July 2019
First Online: 6 August 2019
Ethics approval and consent to participate
: All patients gave written consent to take part in the study and the study was approved by the health authorities. The Ethical Committee of the Hospital Central de Asturias was the committee of reference.
: Not applicable.
: A Beristain: no competing interest. Fernando de la Torre is an employee of ALK-Abelló, S.A., Madrid, Spain.