1. 1Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
2. 2Center for Molecular Oncology and Division of Endocrinology & Metabolism, University of Connecticut School of Medicine, Farmington, Connecticut, USA
3. 3Center for Regenerative Medicine & Skeletal Development, Center for Molecular Oncology, University of Connecticut School of Medicine/Dental Medicine, Farmington, Connecticut, USA
4. 4Department of Endocrine Neoplasia & Hormonal Disorders, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
5. 5Department of Medicine-Endocrinology, Baylor College of Medicine, Houston, Texas, USA
6. 6Department of Nuclear Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
7. 7Department of Endocrinology, University of Florence, Medical School, Florence, Italy