Cancer treatment model with the Caputo-Fabrizio fractional derivative Mustafa Ali Dokuyucu, Ercan Celik, Hasan Bulut and Haci Mehmet Baskonus Eur. Phys. J. Plus, 133 3 (2018) 92 Published online: 05 March 2018 DOI: 10.1140/epjp/i2018-11950-y