Funding for this research was provided by:
Ministerio de Economía y Competitividad (PSI2015-68793-C3-1-R [D601], FJCI-2015-26755)
“la Caixa” Foundation (NA)
Ministerio de Ciencia, Innovación y Universidades (FJCI-2017-33396)
Ministerio de Economía y Competitividad (BES-2016-076869)
Received: 2 February 2020
Accepted: 30 March 2020
First Online: 24 April 2020
Ethics approval and consent to participate
: The procedure was performed following current guidelines and regulations, and the study was approved by the Hospital Universitario San Carlos Ethics Committee under the code 15/382-E_BS. Every participant signed an informed consent.
: Not applicable.
: None of the contributors to this study have any conflict of interest to declare.