1. Department of Medical Biosciences/Clinical ChemistryUmeå UniversityUmeåSweden
2. Faculty of Medicine and HealthSchool of Health and Medical SciencesÖrebro UniversityÖrebroSweden
3. Department of Biosciences and NutritionKarolinska InstituteStockholmSweden
4. Department of Clinical Chemistry and Laboratory MedicineSaarland University HospitalHomburg/SaarGermany
5. Nutrition Research InstituteUniversity of North Carolina, Chapel HillKannapolisNorth CarolinaUSA
6. Department of NutritionUniversity of North Carolina Gillings School of Global Public HealthUniversity of North Carolina, Chapel HillChapel HillNorth CarolinaUSA