Malignant pheochromocytoma: clinical, biological, histologic and therapeutic data in a series of 20 patients with distant metastases. - Schlumberger,M.; Gicquel,C.; Lumbroso,J.; Tenenbaum,F.; Comoy,E.; Bosq,J.; Fonseca,E.; Ghillani,PP.; Aubert,B.; Travagli,JP. (J Endocrinol Invest, 1992)