**Notes/thanks/other declarations**

L.C. thanks the Spanish Ministerio de Ciencia, Innovación y Universidades for the FPU predoctoral contract. T.C. thanks to the Red Temática de Investigación Cooperativa en Cáncer, CIBERONC, Instituto de Salud Carlos III (ISCIII) for her contract. A.S.J.M. thanks to Principado de Asturias and Fondo Europeo de Desarrollo Regional (GRUPIN) for his contract. **Figures 1**–**3** were created with BioRender.com.

**39**

**Author details**

Oviedo, Spain

Gijón, Spain

3 CIBERONC, Madrid, Spain

*Metastatic Paragangliomas and Pheochromocytomas: An Epigenetic View*

María-Dolores Chiara1,2,3\*, Lucía Celada1,3, Andrés San José Martinez1

1 Institute of Sanitary Research of Principality of Asturias, Oviedo, Spain

4 Department of Functional Biology, University of Oviedo, Oviedo, Spain

\*Address all correspondence to: mdchiara.uo@uniovi.es

provided the original work is properly cited.

5 Section of Endocrinology and Nutrition, Hospital Universitario de Cabueñes,

© 2021 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium,

2 Institute of Oncology of the Principality of Asturias, University of Oviedo,

Tamara Cubiella1,3, Enol Álvarez-González1,2,4 and Nuria Valdés1,5

,

*DOI: http://dx.doi.org/10.5772/intechopen.96126*
