normal;mso-layout-grid-align:none;text-autospace:none">ABSTRACT normal;mso-layout-grid-align:none;text-autospace:none">The aim of the experiment was to estimate the effect of repeated simultaneous exposures to infrared laser radiation and μT variable magnetic field used in magneto stimulation on pain perception in rats, as well as the involvement of endogenous opioid system in the mechanism of this effect. In experimental group clean-shaven scull of male Wistar rats placed individ...