Didenko, Irina, Sara Correia, Fátima Ferreira, and Vítor Augusto. 2009. “Pulmonary-Renal Syndrome Associated With Antineutrophil Cytoplasmic Antibodies”. Internal Medicine 16 (1). Lisboa, Portugal:52-61. https://revista.spmi.pt/index.php/rpmi/article/view/1387.