1. Andalusian Center of Molecular Biology and Regenerative Medicine (CABIMER); University of Pablo de Olavide-University of Sevilla-CSIC; Seville 41092 Spain
2. Biomedical Research Network on Diabetes and Related Metabolic Diseases (CIBERDEM); Madrid 28029 Spain
3. Netherlands Organisation for Applied Scientific Research (TNO); Leiden 2301 CE The Netherlands
4. Leiden University Medical Centre; Leiden 2333 ZA The Netherlands