(b)

Blood concentration (mean; pg/mL)	Blood concentration of the oral dose of 4.2 μg/kg/d (pg/mL)	Difference of the concentrations (pg/mL)	Dermal dose corresponding to the concentration difference (μg/kg/d)
330 [25]	70.6	259.4	9.4
5900 [26]	70.6	5,829.4	211.8