E. Malmqvist1,2,3, L.E. Ericson1,2,3, S. Almqvist1,2,3, R. Ekholm1,2,3
1Department of Clinical Chemistry, Karolinska Hospital, Stockholm, Sweden
2Department of Anatomy of the University of Gothenburg, Sweden
3Department of Endocrinology and Metabolism, Karolinska Hospital, Stockholm, Sweden