Fernandes, Bárbara, Pedro Lopes Ferreira, and Américo Figueiredo. 2013. “QUALITY OF LIFE IN PSORIASIS PATIENTS. VALIDATION OF THE PORTUGUESE VERSION OF THE PSORIASIS DISABILITY INDEX”. Journal of the Portuguese Society of Dermatology and Venereology 70 (1), 53. https://doi.org/10.29021/spdv.70.1.38.