k1 = emax k2 = k1 k3 = k1_prime k4 = k1_double_prime k5 = phi1 k6 = k2 k7 = k3 k8 = phi2 k9 = phi3 k10 = k4 k11 = k4_double_prime k12 = k4i k13 = k4a k14 = phi4i k15 = phi4a k16 = k6 k17 = F6 k18 = phi6 k19 = compartment