Testing for germline mutations in sporadic pheochromocytoma/paraganglioma: a systematic review - Brito, J P; Asi, N; Bancos, I; Gionfriddo, M R; Zeballos-Palacios, C L; Leppin, A L; Undavalli, C; Wang, Z; Domecq, J P; Prustsky, G; Elraiyah, T A; Prokop, L J; Montori, V M; Murad, M H (Clin Endocrinol (Oxf), 2014)