Biochemical diagnosis of chromaffin cell tumors in patients at high and low risk of disease: plasma versus urinary free or deconjugated o-methylated catecholamine metabolites

Graeme Eisenhofer^*, Aleksander Prejbisz, Mirko Peitzsch, Christina Pamporaki, Jimmy Masjkur, Natalie Rogowski-Lehmann, Katharina Langton, Elena Tsourdi, Mariola Peczkowska, Stephanie Fliedner, Timo Deutschbein, Felix Megerle, Henri J.L.M. Timmers, Richard Sinnott, Felix Beuschlein, Martin Fassnacht, Andrzej Januszewicz, Jacques W.M. Lenders