Deutsch 
Thiol-Status (Sulfhydryl-Status Test), photometric
IDK®
Vitamin C, colorimetric
IDK®
Serotonin (Serum, dried blood) ELISA
IDK®
Serotonin (Stool) ELISA
GABA (Stool) ELISA
GABA (Urine) ELISA
BCAA, colorimetric
IDK®
IDO activity ELISA
IDK®
Kynurenine ELISA
IDK®
Tryptophan (Stool) ELISA
IDK®
Tryptophan (EDTA plasma, serum, dried blood) ELISA
IDK®
Kynurenic Acid (KynA) ELISA
IDK®
Quinolinic acid (QinA) ELISA
Nitrotyrosine (Stool, Plasma, Serum) ELISA
Nitrotyrosine (EDTA Plasma, Serum, Dried Blood) ELISA
