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. Author manuscript; available in PMC: 2014 Jun 30.
Published in final edited form as: Adv Drug Deliv Rev. 2013 Apr 17;65(7):940–953. doi: 10.1016/j.addr.2013.04.005

Fig. 1.

Fig. 1

Simulation of typical solutions of drug on-off state systems (3.4) and (3.5) with CTH = 700ul−1, CTH = 200ul−1. (A) Time trajectory of total CD4+ T cell population; (B) Time trajectory of health CD4+ T cell population (dashed line) and infected CD4+ T cell population (solid line); (C) Durations of drug on and drug off for each drug on-off switch; (D) Phase plane plot of health CD4+ T cell and infected CD4+ T cell populations.