aDepartment of Clinical Biochemistry, Copenhagen University Hospital – Herlev Gentofte

bThe Copenhagen General Population Study, Copenhagen University Hospital – Herlev Gentofte, Herlev, Denmark

cDepartment of Endocrinology and Metabolism and Research Center of Metabolic Diseases, National Institute of Medical Sciences and Nutrition Salvador Zubirán, México City, México

dDepartment of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark

Correspondence to Camilla J. Kobylecki, MD, PhD, Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, Borgmester Ib Juuls Vej 1, 2730 Herlev, Denmark. Tel: +45 2034 5364; e-mail: [email protected]

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