Sferra, R., S. Pompili, G. Latella, G. Sabetta, A. Smakaj, G. Stati, G. Stati, and A. Vetuschi. “Interaction Between Sphingosine Kinase/Sphingosine 1 Phosphate and Transforming Growth Factor-β/Smads Pathways in Experimental Intestinal Fibrosis: An in Vivo Immunohistochemical Study”. Italian Journal of Anatomy and Embryology, vol. 123, no. 1, Dec. 2018, p. 203, doi:10.13128/ijae-11528.