I Thien, C., M. R. de N. Fernandes, M. D. Novello, F. Cabral, A. L. Bressan, J. M. Piñeiro-Maceira, and A. C. Gripp. “Refractory Bullous Pemphigoid in HIV-Infected Patient”. Journal of the Portuguese Society of Dermatology and Venereology, Vol. 76, no. 1, Apr. 2018, pp. 75-78, doi:10.29021/spdv.76.1.739.