11671
We can classify antibiotics into two groups based on initial bactericidal activity against P . aeruginosa ; one class is antibiotics having rapid initial killing such as AMK , IPM and PAPM , the other is CAZ , MEPM showing slow initial killing .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 None