Drug	MIC (gm/L)
	CRO-Intermediate (n = 62)			CRO-Resistant (n = 33)
	MIC50	MIC90	Range	MIC50	MIC90	Range
BPR	0.5	1	0.12–1	1	2	0.5–4
CTX	2	2	1–4	8	16	2–32
CXM	8	8	2–16	32	64	4–>64
CRO	2	2	2	4	16	4–16
PEN	4	4	2–16	8	16	4–32