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Microorganism MIC50
(μg/ml)		 MIC90
(μg/ml)		 Range
(μg/ml)		 Antimicrobial Reference
Escherichia coli (nalidixic acid-resistant) 0.25 1 0.25 － 1 Ciprofloxacin (Cipro, Ciproxin, Ciprobay) 244