Gonçalves, Margarida, Gonçalo Silva, Augusto Barros, Rita Rodrigues, Paula Caldeira, Luís Freitas, Ema Freitas, Cláudia Fraga, and António Caldeira Ferreira. 2007. “Dermatomyositis – Two Clinical Cases”. Internal Medicine 14 (4). Lisboa, Portugal:206-13. https://revista.spmi.pt/index.php/rpmi/article/view/1573.