1. Department of Endocrinology and Nutrition Parc Sanitari Sant Joan de Deu Barcelona Spain
2. Clinical Biochemistry Laboratory Parc Sanitari Sant Joan de Deu Barcelona Spain
3. Department of Endocrinology and Nutrition Hospital de la Santa Creu I Sant Pau Barcelona Spain
4. Department of Medicine Universitat Autonoma de Barcelona Barcelona Spain
5. Biomedical Research Center Network of Bioengineering Biomaterials and Nanomedicine (CIBERBBN), ISCIII Madrid Spain