Alonso, Silvia
Caceres, Sara http://orcid.org/0000-0001-6947-2127
VĂ©lez, Daniel
Sanz, Luis
Silvan, Gema
Illera, Maria Jose
Illera, Juan Carlos
Article History
Received: 19 June 2020
Accepted: 3 February 2021
First Online: 9 February 2021
Ethics approval and consent to participate
: This study has been approved by the Clinical Research Ethics Committee of HM Hospitals, with the code CEIm HM hospitals: 16.06.0960-GHM, in accordance with the World Medical Association and the Declaration of Helsinki. All participants signed consent prior to participation and were allowed to stop participation without prejudice. Reporting of the study conforms to broad EQUATOR longitudinal studies guidelines [CitationRef removed].
: Not applicable.
: The authors declare that they have no competing interests.