J. L. Amaral, N. A. Almeida, P. S. Santos, P. P. de Oliveira, e F. M. Lanza, “Socio-demographic, economic and health profile of adults with sickle-cell disease”, Rev Rene, vol. 16, nº 3, jun. 2015, doi: 10.15253/2175-6783.2015000300002.