TABLE 2.

E_max concentrations that produce EC₅₀ and Hill's coefficients deduced from in vitro killing curves^a

Strain	Antibiotic	Emax	EC50 (multiple of MIC)	Hill's coefficient	r2
E. faecalis	Amoxicillin	0.018	0.76	0.96	0.87
	Gentamicin	0.032	4.5	0.88	0.97
PRP-1	Amoxicillin	0.030	0.36	1.29	0.49
	Ceftriaxone	0.027	0.39	0.61	0.53
	Vancomycin	0.038	0.49	1.83	0.74
PRP-2	Amoxicillin	0.060	1.41	1.11	0.7
	Ceftriaxone	0.026	0.16	0.57	0.58
	Vancomycin	0.072	2.33	0.63	0.74

^aSee Materials and Methods.