Breivik, Torbjørn; Gundersen, Yngvar; Murison, Robert; Turner, Jonathan D.; Muller, Claude P.; Gjermo, Per E; Opstad, Per Kristian. Maternal deprivation of Lewis rat pups increases the severity of experimental periodontitis in adulthood. Open Dentistry Journal 2015 ;Volum 9.(1) s. 65-78

Breivik, Torbjørn; Gundersen, Yngvar; Gjermo, Per E; Fristad, Inge; Opstad, Per Kristian. Systemic Chemical Desensitization of Peptidergic Sensory Neurons with Resiniferatoxin Inhibits Experimental Periodontitis. Open Dentistry Journal 2011 ;Volum 5. s. 1-6