1115
The content of monoamine metabolites , 5 - hydroxyindoleacetic acid , 5 - HIAA , and homovanillic acid ( HVA ) , and - - for 17 patients - - tryptophan , in the cerebrospinal fluid was determined .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None