Funding
The present study was funded by a grant from “Bottom-up” strategic projects for 2019 of Osakidetza-Basque Health Department (Osakidetza Servicio Vasco de Salud, Departamento de Salud, Gobierno Vasco). Funders had no role in study design, data collection, data analysis, data interpretation, or writing the report and neither had access to study raw data. All authors had complete access to the study data that support the publication.