5-Hydroxyindoleacetic acid (5-HIAA), a metabolite of serotonin used to diagnose carcinoid tumors
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Halifax International Airport Authority, a Canadian airport authority charged with operating Halifax Stanfield International Airport on behalf of Transport Canada
Impulsive behavior, and especially impulsive violence predisposition has been correlated to a low brain serotonin turnover rate, indicated by a low concentration of 5-Hydroxyindoleacetic acid (5-HIAA) in the cerebrospinal fluid (CSF).