1876
PATIENTS AND METHODS : A total of 4086 patients ( mean age 60 . 8 years ) diagnosed with RA were enrolled and received etoricoxib 90 mg daily ( n = 2032 ) or diclofenac 75 mg twice daily ( n = 2054 ) .
 Disease: RA; Chemical: etoricoxib; Chemical: diclofenac
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: RA; Chemical: etoricoxib; Chemical: diclofenac