12481
We have previously reported reduced levels of choline acetyltransferase activity in the cerebral cortex of patients who died after a head injury , demonstrating that there is a loss of cortical cholinergic innervation .
 GENE: choline acetyltransferase
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: choline acetyltransferase 
Answer:
 GENE: choline acetyltransferase