1. Hospital General Universitario de Alicante; Department of Cardiology & CASP Spain; Pintor Baeza 12 Alicante Alicante Spain 03010
2. City University London; School of Health Sciences; Myddleton Street London UK EC1V 0HB
3. Hospital Universitario Donostia; Unidad de Epidemiología Clínica. CASPe. CIBERESP; Paseo del Doctor Begiristain, 107-115 San Sebastián Spain 20014
4. University of Birmingham; Public Health, Epidemiology and Biostatistics; Edgbaston Birmingham UK B15 2TT
5. Kingston University and St George's University of London; Faculty of Health, Social Care and Education; Grosvenor Wing Cranmer Terrace London UK SW17 0RE