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Broth microdilution was compared with agar dilution to test the susceptibilities of 170 clinical isolates of Neisseria gonorrhoeae to several antimicrobial agents. Percents agreement between the two methods within 1 doubling dilution were 98.8% for enoxacin, 94.3% for penicillin G, 93.5% for spectinomycin, and 98.4% for ceftriaxone.
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Geers et al. (1989) studied this question.
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