University of Helsinki (FI), University of Turku (FI), University of California, Los Angeles (US), University of Eastern Finland (FI), Lund University (SE), University of Münster (DE), Oulu University Hospital (FI), California University of Pennsylvania (US), Kuopio University Hospital (FI), Finland University (FI), German Institute of Human Nutrition (DE), University of Gothenburg (SE), University of Oulu (FI)