Table 4:

Results from the meta-regression.

Variable	Range/values	Estimate (SE) in mV	p-value
(Intercept)		9.73 (0.90)	< 0.0001
Buffer flow rate (mL/min)	0.00001 to 5.0	0.38 (0.40)	0.35
Species	Mice/humans	8.26 (1.64)	< 0.0001