Cossu, Davide, et al. “Association of Mycobacterium Avium Subsp. Paratuberculosis and SLC11A1 Polymorphisms in Sardinian Multiple Sclerosis Patients”. The Journal of Infection in Developing Countries, vol. 7, no. 03, Mar. 2013, pp. 203-7, doi:10.3855/jidc.2737.