Savel’eva, Natal’ya. 2015. “LIPID PEROXIDATION SYSTEM AND ANTIOXIDANT DEFENCE STATE IN PATIENTS WITH CHRONIC GENERALIZED PERIODONTITIS SEVERITY STAGES I-II COMBINED WITH PARASITOSES”. Journal of Education, Health and Sport 5 (12):465-76. https://apcz.umk.pl/JEHS/article/view/3252.