Morgan SL, Baggott JE, Alarcon GS. Methotrexate in rheumatoid arthritis: folate supplementation should always be given. BioDrugs. 1997, 8 (1): 164–75. PMID 18020507. doi:10.2165/00063030-199708030-00002.
Morgan SL, Baggott JE, Alarcon GS. Methotrexate in rheumatoid arthritis: folate supplementation should always be given. BioDrugs. 1997, 8 (1): 164–75. PMID 18020507. doi:10.2165/00063030-199708030-00002.