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OBJECTIVE : To report 2 cases of ticlopidine - induced cholestatic hepatitis , investigate its mechanism , and compare the observed main characteristics with those of the published cases .
 Chemical: ticlopidine; Disease: cholestatic hepatitis
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, cholestatic hepatitis 
Answer:
 Chemical: ticlopidine; Disease: cholestatic hepatitis