Taraborelli, M. et al. 2009. Methylenetetrahydrofolate reductase polymorphisms in methotrexate treatment of rheumatoid arthritis patients. Review of the literature and personal experience. Reumatismo. 61, 2 (Jun. 2009), 98–106. DOI:https://doi.org/10.4081/reumatismo.2009.98.