3540
The effect of long - term timolol treatment on heart size after myocardial infarction was evaluated by X - ray in a double - blind study including 241 patients ( placebo 126 , timolol 115 ) .
 Chemical: timolol; Disease: myocardial infarction; Chemical: timolol
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: timolol, myocardial infarction, timolol 
Answer:
 Chemical: timolol; Disease: myocardial infarction; Chemical: timolol