1. From the Clinic for Thoracic and Cardiovascular Surgery, Heart Centre North Rhine-Westphalia, Ruhr University Bochum, Bad Oeynhausen, Germany (AZ); the Division of Epidemiology and Biostatistics, European Institute of Oncology, Milan, Italy (SI, VB, and SG); the Department of Internal Medicine, Division of Endocrinology and Metabolism, Medical University of Graz, Graz, Austria (SP); the Sunlight,