Molecular Detection of Epstein-Barr Virus, Human Herpes Virus 6, Cytomegalovirus, and Hepatitis B Virus in Patients with Multiple Sclerosis. - Asouri M; Sahraian MA; Karimpoor M; Fattahi S; Motamed N; Doosti R; Amirbozorgi G; Sadaghiani S; Mahboudi F; Akhavan-Niaki H (Middle East journal of digestive diseases, 2020)