29549
Patients who experienced an INR higher than 5 were designated as case patients ; those who received warfarin for at least as many days as the case patients but who did not experience an INR more than 5 were deemed control patients .
 Chemical: warfarin
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: warfarin 
Answer:
 Chemical: warfarin