24007
In the checkerboard test , CCM markedly reduced the MICs of the antibiotics oxacillin ( OXI ) , ampicillin ( AMP ) , ciprofloxacin ( CIP ) , and norfloxacin ( NOR ) used against MRSA .
 CCM, oxacillin, OXI, ampicillin, AMP, ciprofloxacin, CIP, norfloxacin, NOR
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 CCM, oxacillin, OXI, ampicillin, AMP, ciprofloxacin, CIP, norfloxacin, NOR