k1 = F_b
k2 = F_H
k3 = F_G
k4 = CL_H
k5 = Q
k6 = f_H
k7 = CL_dopa
k8 = f_rest
k9 = f_AADC
k10 = f_COMT
k11 = CL_AADC
k12 = CL_rest
k13 = CL_COMT
k14 = CL_dopa0
k15 = ka_b
k16 = CL_OMD
k17 = L_Dopa_per_kg_rat
k18 = rat_body_mass
k19 = gut
k20 = Vdopa
k21 = V_3_OMD