Conflicts of Interest The authors declare no conflicts of interest. References 1, “A Lyapunov Function for Leslie-Gower Predator-Prey Models,” Applied Mathematics Letters 14 (2001): 697699. 2, , and , “Two Limit Cycles in a Leslie-Gower Predator-Prey Model With Additive Allee Effect,” Nonlinear Analysis: Real World Applications 10 (2009): 14011416.