Funding for this research was provided by:
Spanish Ministry of Science, Innovation and Universities (SAF2016-76819-R)
Instituto de Salud Carlos III (TERCEL RD16/00110018, CB16/11/0041, P17/01321)
Departament d'Universitats, Recerca i Societat de la Informació (2017SGR1480)
Received: 29 July 2019
Revised: 16 October 2019
Accepted: 17 October 2019
First Online: 29 November 2019
Ethics approval and consent to participate
: Tissue was obtained with informed consent from patients. The protocol was approved by the Research Ethics Committee of the Sant Pau i la Santa Creu Hospital and was conducted in accordance with the Declaration of Helsinki.
: Not applicable
: The authors declare that they have no competing interests.