k1 = alpha
k2 = alpha_0
k3 = alpha_1
k4 = delta_2
k5 = mu_1
k6 = mu_10
k7 = mu_11
k8 = mu_2
k9 = mu_20
k10 = beta_1
k11 = beta_2
k12 = mu_3
k13 = mu_30
k14 = gamma_1
k15 = gamma_2
k16 = mu_4
k17 = mu_40
k18 = delta_1
k19 = compartment