Funding for this research was provided by:
Instituto de Salud Carlos III (PI15/02042, FIS PI15/00167)
European Regional Development Fund (SAF 2014-54371)
Received: 14 February 2019
Accepted: 30 May 2019
First Online: 24 June 2019
Ethics approval and consent to participate
: This is a cross-sectional, prospective, uncontrolled, multicentre, observational study. The study protocol was approved by the Ethics committees of the participating hospitals (IMIM-Hospital del Mar, Hospital Universitari Parc Taulí, Hospital Clinic, Hospital 12 Octubre, Fundación Jimenez Díaz and Hospital Son Espases), and all patients included signed their informed consent.
: Not applicable.
: The authors declare that they have no competing interests.