The<unk>  is an<unk>  collaboration of researchers studying<unk><unk> . It has created a patient registry for longitudinal studies. The<unk>  studies deficiencies in aromatic amino acid decarboxylase, tyrosine hydroxylase, dopamine beta-hydroxylase, monoamine oxidase A, dopamine transporter, vesicular monoamine transporter 2 GTP cyclohydrolase (Segawa disease), 6-pyruvoyl-tetrahydropterin synthase, dihydropteridine reductase, sepiapterin reductase, folate receptor alpha, dihydrofolate reductase, 3-phosphoglycerate dehydrogenase, 3-phosphoserine phosphatase, phosphoserine aminotransferase, the glycine cleavage system (the deficiency is called glycine encephalopathy or non-ketotic hyperglycinaemia), GABA-transaminase, and succinate-semialdehyde dehydroxylase.
International Working Group on Neurotransmitter Related Disorders
World Network of Users and Survivors of Psychiatry
Organization for Understanding Cluster Headaches
International Review of Psychiatry
European Network for the Investigation of Gender Incongruence
Epidemiology of attention deficit hyperactive disorder
Genetics of post-traumatic stress disorder
American Association for Geriatric Psychiatry