Effects of Mobile Phone Electromagnetic Fields on Human Brain Activity. - Magdalena Garvanova; Ivan Garvanov; Daniela Trapkova; Krasimir Nedelchev; Daniela Borissova; Georgi Petrov Dimitrov; Nurassyl Kerimbayev; Galina Tkach; Inabat Zeinullayeva (ICTRS, 2021)