4109
The case report questions the long term use of pain killers combined with psycho - active drugs in chronic non malignant pain , especially if pain is under control .
 Disease: pain; Disease: pain; Disease: pain
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: pain; Disease: pain; Disease: pain