the two groups did not differ with respect to the following : serum serotonin , plasma tryptophan , plasma tyrosine , and the urinary excretion of tryptamine , tyramine , serotonin , 5-hydroxyindoleacetic acid , creatinine , 17-hydroxycorticosteroids , 17-ketosteroids , and urinary free cortisol .
C0229671
serum
C0032105
plasma