Both Stimulatory and Inhibitory Effects of Dietary 5-Hydroxytryptophan and Tyrosine are Found on Urinary Excretion of Serotonin and Dopamine in a Large Human Population [Expression of Concern]
Trachte G, Uncini T, Hinz M. Neuropsychiatr Dis Treat. 2009;5:227– 235.
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