Funding for this research was provided by:
Received: 13 June 2021
Accepted: 19 July 2021
First Online: 28 July 2021
: Following the Declaration of Helsinki principles, all participants in the study provided informed consent to clinical investigations, with evaluation and approval from the corresponding ethics committee (Comité Ético de Investigación Clínica de Euskadi PI2016114). All data was anonymized to protect the confidentiality of participants.
: Not applicable.
: The authors declare that they have no competing interests.