1 Department of Internal and Agricultural Medicine, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland (M.S., T.J.G.).
2 Institute of Cardiovascular and Medical Sciences, University of Glasgow, United Kingdom (M.S., T.J.G.).
3 Medical Research Council (MRC) Population Health Research Unit, Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, United Kingdom (M.V.H.).