Figure 4From: A systematic review of the literature examining the diagnostic efficacy of measurement of fractionated plasma free metanephrines in the biochemical diagnosis of pheochromocytomaLikelihood ratios (LRs) of a negative fractionated plasma metanephrine measurement predicting pheochromocytoma in patients with sporadic pheochromocytoma or at risk for sporadic pheochromocytomaBack to article page