1182
In patients with osteomyelitis and joint empyema ( n = 48 ) PMN elastase had a sensitivity of 77 % , which was only exceeded by that of the unspecific erythrocyte sedimentation rate ( sensitivity 89 % ) .
 PMN elastase
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 PMN elastase