title: The tyrosine-tryptophan-diagram in a longtime study with depressed patients.
mesh_terms: D002395:Catecholamines / Q000378:metabolism; D003863:Depression / Q000097:blood* / Q000378:metabolism; D006801:Humans; D007211:Indoles / Q000378:metabolism; D014364:Tryptophan / Q000097:blood*; D014443:Tyrosine / Q000097:blood*
chemical_list: D002395:Catecholamines; D007211:Indoles; D014443:Tyrosine; D014364:Tryptophan