Clinical presentation and diagnostic evaluation of pheochromocytoma: case series and literature review oleh Panagiota Anyfanti, Κonstantinos Mastrogiannis, Αntonios Lazaridis, Κonstantinos Tasios, Despoina Vasilakou, Αnastasia Kyriazidou, Fotios Aroutsidis, Olga Pavlidou, Εleni Papoutsopoulou, Athina Tiritidou, Vasileios Kotsis, Αreti Triantafyllou, Ιoannis Zarifis, Stella Douma, Εugenia Gkaliagkousi