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Comparison of 3-methoxytyramine values in different groups using scatter plot Groups (0-control, 1-head and neck paragangliomas, 2-pheochromocytomas and paragangliomas [PHEO/PGL], 3-benign PHEO/PGL, 4-malignant pheochromocytomas/paragangliomas). In this scatter plot the 3-methoxytyramine levels were compared between different groups
