1. From the NUTRIM School for Nutrition, Toxicology and Metabolism, Department of Respiratory Medicine, Maastricht University Medical Center, Maastricht, Netherlands (BvdB, HRG, and AMWJS); the Laboratory of Epidemiology, Demography, and Biometry, Intramural Research Program, National Institute on Aging, Bethesda, MD (AK, BY, and TBH); the School for Public Health and Primary Care, Department of Soc