k1 = r_1
k2 = b_1
k3 = c_1
k4 = a_1
k5 = delta_1
k6 = beta_1
k7 = alpha_1
k8 = mu_1
k9 = delta_2
k10 = beta_2
k11 = alpha_2
k12 = mu_2
k13 = r_2
k14 = b_2
k15 = delta_3
k16 = I_2
k17 = I_1
k18 = Tumor_Cells_1e8
k19 = Host_Cells_1e8
k20 = compartment