Associations between Toxoplasma gondii Infection and Multiple Sclerosis: A Case-Control Seroprevalence Study - Shahra, Masoumeh; Keshavarz, Hossein; Sahraeian, Mohammad Ali; Shojaee, Saeedeh; Heidari, Aliehsan; Alimi, Rasoul; Teimouri, Aref (Iranian Journal of Parasitology, 2023)