Brola, Waldemar, Jan Czernicki, Józef Opara, Małgorzata Fudala, and Waldemar Węgrzyn. 2010. “Effect of Pulsing Magnetic Fields Therapy on Multiple Sclerosis Fatigue and Selected Features of Quality of Life”. European Journal of Clinical and Experimental Medicine 8 (2):182–188. https://journals.ur.edu.pl/ejcem/article/view/13071.