Measurements of plasma methoxytyramine, normetanephrine, and metanephrine as discriminators of different hereditary forms of pheochromocytoma - Eisenhofer, G; Lenders, JW M; Timmers, H; Mannelli, M; Grebe, S K; Hofbauer, L C; Bornstein, S R; Tiebel, O; Adams, K; Bratslavsky, G; Linehan, W M; Pacak, K (Clin Chem, 2011)