csf levels of radioreceptorassayed endorphins fraction i ( endfi , n = 92 ) and homovanillic acid ( hva ) and 5-hydroxyindoleacetic acid ( 5-hiaa ) ( n = 118 ) were measured in patients with major depressive disorders according to research diagnostic criteria ( 18 % were psychotic ; 11 % hallucinated during the peak of the depressive episode ) .
C1269683
major depressive disorders
C0011581
depressive episode