787
T - cell stimulation by therapeutic concentration of ticlopidine was demonstrated in vitro in the patients , but not in healthy controls .
 Chemical: ticlopidine
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: ticlopidine 
Answer:
 Chemical: ticlopidine