1 Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, UK. Electronic address: m.s.hall@leeds.ac.uk.
2 Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Italy. Electronic address: edina.cenko2@unibo.it.
3 Centro Nacional de Investigaciones Cardiovasculares (CNIC), Instituto de investigación i+12 and Cardiology Department, Hospital Universitario 12 de Octubre, Universidad Complutense de Madrid, Spain. Electronic address: hecbueno@jet.es.
4 Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, UK; Department of Cardiology, York Teaching Hospital NHS Foundation Trust, UK. Electronic address: c.p.gale@leeds.ac.uk.