1. Department of Anatomy and Cell Biology; Indiana University School of Medicine; Indianapolis IN USA
2. Instituto de Investigación Sanitaria-Fundación Jiménez Díaz; Madrid Spain
3. Roudebush Veterans Administration Medical Center; Indianapolis IN USA
4. Instituto de Medicina Molecular Aplicada-Universidad San Pablo CEU; Madrid Spain
5. Department of Medicine; Division of Endocrinology; Indiana University School of Medicine; Indianapolis IN USA