List of Articles System of differential equations Open Access Article Abstract Page Full-Text 1 - Numerical solution of fractional model of HIV infection in cells CD4+T Mohammad Reza Doostar Tayebeh Damercheli Alireza Vahidi Open Access Article Abstract Page Full-Text 2 - Optimal Control of Hand, Foot and Mouth Disease Model using Variational Iteration Method Devipriya Ganeshan L. Jane Darne