1. Knowledge and Evaluation Research Unit, Mayo Clinic, Rochester, Minnesota, USA.
2. CaTaLiNA Research Initiative (Cancer de tiroides en Latinoamerica), Quito, Ecuador.
3. Department of Teaching and Research, Hospital Vozandes Quito, Quito, Ecuador.
4. Endocrinology and Metabolism Department, Cleveland Clinic Foundation, Ohio, USA.
5. Medical School, Universidad San Francisco de Quito, Quito, Ecuador.
6. Medical School, Universidad Central del Ecuador, Quito, Ecuador.
7. Department Otolaryngology-Head and Neck Surgery, School of Medicine, Stanford University, Stanford, California, USA.
8. Head and Neck Department, ITECC (Instituto de la Tiroides y Enfermedades de Cabeza y Cuello), Quito, Ecuador.
9. Endocrinology Department, Hospital Eugenio Espejo, Quito Ecuador.
10. Division of Endocrine Surgery, Mayo Clinic, Rochester, Minnesota, USA.