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PDF] Plasma levels of free metanephrines and 3-methoxytyramine indicate a higher number of biochemically active HNPGL than 24-h urinary excretion rates of catecholamines and metabolites. | Semantic Scholar
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Diagnostic accuracy of plasma free metanephrines in a seated position compared with 24-hour urinary metanephrines in the investigation of pheochromocytoma. | Semantic Scholar
METANEPHRINES, 24 HOUR URINE ( HPLC) Metanephrines Normetanephrines µg/24 hrs µg/24 hrs ANALYTE AGE REFERENCE RANGE IN µg/2
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