1. The eponymy of sarcoidosis;Scadding;J R Soc Med,1981
2. Sarcoidosis at Merck Manual of Diagnosis and Therapy Home Edition.
3. http://en.wikipedia.org/wiki/Sarcoidosis-cite_ref-Harrison_2-03. Harrison’s Practice, Sarcoidosis.
4. Illustrations of Clinical Surgery;Hutchinson,1875
5. Lupus pernio de la face: Synovites fongueuses symétriques des extrémités supérieures;Besnier;Ann Dermatol Syphil,1889