Furfaro, F., C. Bezzio, S. Ardizzone, A. Massari, R. de Franchis, and G. Maconi. “Overview of Biological Therapy in Ulcerative Colitis: Current and Future Directions”. Journal of Gastrointestinal and Liver Diseases, vol. 24, no. 2, June 2015, pp. 203-1, doi:10.15403/jgld.2014.1121.242.bezz.