María, Fernández-Martínez http://orcid.org/0000-0003-4687-2122
Lorena, Martín-Román
María Luz, Fernández-Vázquez
Cristina, Rey-Valcarcel
Dolores, Pérez-Díaz
Fernando, Turégano-Fuentes
Article History
Received: 20 September 2020
Accepted: 16 November 2020
First Online: 5 January 2021
Compliance with ethical standards
:
: No conflicts of interest to declare.
: It is an observational retrospective study and due to the exceptional circumstances of the moment, we thought that the study was exempt from approval by the Ethics Committee of our center. No ethics conflicts to declare.
: It is an observational retrospective study and no informed consent is needed.
: All the authors agree with the content and all give explicit consent to submit. Consent from the responsible authorities at the institute/organization where the work has been carried out has been obtained.
Free to read: This content has been made available to all.