1. From the Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Norway (PB, HR, EN, CAD, and GU); the Department of Public Health and Primary Health Care (SVK, SEV, and GST) and the Section for Pharmacology, Institute of Medicine (HR and PMU), University of Bergen, Norway; the Oxford Centre for Gene Function, Department of Physiology, Anatomy & Genetics, University of O