Nunes da Silva, M. J., N. Garrido, P. Alves, and R. M. M. Victorino. “Distinct Effects of corticosteroid/Immunossupressive Therapy on the Different Manifestations of Churg-Strauss Syndrome”. Internal Medicine, vol. 12, no. 3, Sept. 2005, pp. 154-8, https://revista.spmi.pt/index.php/rpmi/article/view/1694.