1. Joint statement of the american thoracic society (ATS), the European respiratory society (ERS) and the world association of sarcoidosis and other granulomatous disorders (WASOG) adopted by the ATS board of directors and by the ERS executive committee;Statement on sarcoidosis;Am. J. Respir. Crit. Care Med.,1999
2. Sarcoidosis;Valeyre;Lancet,2014
3. Fatigue in sarcoidosis: a systematic review;de Kleijn;Curr. Opin. Pulm. Med.,2009
4. Sarcoidosis-associated fatigue;Drent;Eur. Respir. J.,2012
5. Characterization of chronic fatigue in patients with sarcoidosis in clinical remission;Korenromp;Chest,2011