KALKANIS, A.; YUCEL, R.M.; JUDSON, M.A. The Internal Consistency of PRO Fatigue Instruments in Sarcoidosis: Superiority of the PFI over the FAS. Sarcoidosis, Vasculitis and Diffuse Lung Diseases, Fidenza, Italy, v. 30, n. 1, p. 60–64, 2013. Disponível em: https://mattioli1885journals.com/index.php/sarcoidosis/article/view/2769.. Acesso em: 31 jan. 2025.