Modeling the mechanisms of methamphetamine abuse transmission with immigration impact and relapse Shahid Abbas, J. F. Gómez-Aguilar, Ghaus ur Rahman and Muhammad Asif Eur. Phys. J. Plus, 138 6 (2023) 484 Published online: 01 June 2023 DOI: 10.1140/epjp/s13360-023-04122-x