Rivera-Caravaca JM, Marín F, Esteve-Pastor MA, et al. Murcia atrial fibrillation project II: protocol for a prospective observational study in patients with atrial fibrillation. BMJ Open 2019;9:e033712. doi:10.1136/bmjopen-2019-033712

This article has been corrected since it was published online. The funding section has been updated from “This study is supported by the Spanish Ministry of Economy, Industry, and Competitiveness, through the Instituto de Salud Carlos III after independent peer review (research grant: PI17/01375 co-financed by the European Regional Development Fund) and received a small grant from Fundación para la Formación e Investigación Sanitarias de la Región de Murcia (FFIS17/CE/01/03).” to “This study is supported by Instituto de Salud Carlos III after independent peer review (research grant: PI17/01375-co-funded by ERDF/ESF, “Investing in your future”) and received a small grant from and Fundación para la Formación e Investigación Sanitarias de la Región de Murcia (FFIS17/CE/01/03) co-funded by ERDF/ESF, “Investing in your future”