J. Rojo Álvaro, M. Toni García, M. Ollero García-Agulló, J. Pineda Arribas, P. Munárriz Alcuaz, and E. Anda Apiñániz, “Analysis of a series pheochromocytoma cases over 15 years”, An Sist Sanit Navar, vol. 35, no. 2, pp. 199–205, Sep. 2012.