k1 = K1
k2 = K2
k3 = K3
k4 = K4
k5 = Kc
k6 = Kd
k7 = kd
k8 = V2
k9 = V4
k10 = vs
k11 = vd
k12 = Vm1
k13 = Vm3
k14 = V1
k15 = V3
k16 = compartment