D'Andrea, N.; Triolo, L.; Margagnoni, G.; Aratari, A.; Sanguinetti, C. M. Methotrexate-Induced Pneumonitis in Crohn’s Disease: Case Report and Review of the Literature. Multidiscip Respir Med 2010, 5 (1). https://doi.org/10.4081/mrm.2010.558.