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Using high pressure liquid chromatography, we find more brainstem 5-HT and 5-HIAA in suicides compared with nonpsychiatric, sudden death controls throughout the rostrocaudal extent of the brainstem DRN and MRN. This suggests that 5-HT synthesis in suicides is greater within all DRN subnuclei and the MRN compared with controls.
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Bach et al. (2013) studied this question.
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