Figure 2From: Analysis of a delay-induced mathematical model of cancerThe vector field plot of immune–tumor–normal cells for \(r_{1} =0.27\), \(M ( 0 ) =0.2\), \(H ( 0 ) =0.05\), and \(R ( 0 ) =0.9\) when (a) \(\tau =5\) (red); (b) \(\tau =15\) (green); and (c) \(\tau =25\) (blue)Back to article page