European Society of Endocrinology Clinical Practice Guideline for long-term follow-up of patients operated on for a phaeochromocytoma or a paraganglioma - Plouin, P F; Amar, L; Dekkers, O M; Fassnacht, M; Gimenez-Roqueplo, A P; Lenders, JW M; Lussey-Lepoutre, C; Steichen, O (Eur J Endocrinol, 2016)