Figure 1From: Threshold dynamical analysis on a class of age-structured tuberculosis model with immigration of population The schematic flow diagram of our model. Here, the terms \([\sigma E]\) and \([\gamma R]\) stand for \(\int_{0}^{\infty}\sigma(a)e(t,a)\,da\) and \(\int_{0}^{\infty}\gamma(b)r(t,b)\,db\).Back to article page