Sferra, R., M. C. Fargnoli, E. Corbelli, C. Pellegrini, K. Peris, E. Gaudio, and A. Vetuschi. “Immunopathogenesis of Psoriasis: A Possible Role of TGFβ/Smads Pathway”. Italian Journal of Anatomy and Embryology, vol. 119, no. 3, Feb. 2015, pp. 277-85, https://oajournals.fupress.net/index.php/ijae/article/view/1266.